diff --git a/lab07/Makefile b/lab07/Makefile
index e476c89..caf564f 100644
--- a/lab07/Makefile
+++ b/lab07/Makefile
@@ -3,7 +3,7 @@ CC = gcc
 CFLAGS = -Wall -std=c11
 
 #Input file
-INPUT = input1.txt
+INPUT = input.txt
 OUTPUT = output.txt
 REF = ref1.txt
 # Source file
diff --git a/lab08/Makefile b/lab08/Makefile
new file mode 100644
index 0000000..b8f66a2
--- /dev/null
+++ b/lab08/Makefile
@@ -0,0 +1,60 @@
+# Compiler and flags
+CC = gcc
+CFLAGS = -Wall -std=c11
+
+#Input file
+INPUT = input5.txt
+OUTPUT = output.txt
+REF = ref5.txt
+# Source file
+SRCS = lab8.c
+# Output
+TARGET = lab8.out
+
+# Default target
+all: $(TARGET)
+
+# Rule to build the executable
+$(TARGET): $(SRCS)
+	$(CC) $(CFLAGS) $(SRCS) -o $(TARGET)
+
+convert_input: $(INPUT)
+	@if [ -s $(INPUT) ] && file $(INPUT) | grep -q 'CRLF line terminators' ; then \
+    { cat $(INPUT) | dos2unix; } | tee $(INPUT) >/dev/null; \
+	fi
+	@if [ -s $(INPUT) ] && tail -c1 $(INPUT) | grep -q . ; then \
+    echo >> $(INPUT); \
+    	tr -d '\r' < $(INPUT) > temp_file && mv temp_file $(INPUT); \
+	fi
+
+convert_output: $(OUTPUT)
+	@if [ -s $(OUTPUT) ] && file $(OUTPUT) | grep -q 'CRLF line terminators' ; then \
+    { cat $(OUTPUT) | dos2unix; } | tee $(OUTPUT) >/dev/null; \
+	fi
+	@if [ -s $(OUTPUT) ] && tail -c1 $(OUTPUT) | grep -q . ; then \
+    echo >> $(OUTPUT); \
+    	tr -d '\r' < $(OUTPUT) > temp_file && mv temp_file $(OUTPUT); \
+	fi
+
+check: $(OUTPUT) $(REF)
+	@if [ -s $(REF) ] && file $(REF) | grep -q 'CRLF line terminators' ; then \
+    { cat $(REF) | dos2unix; } | tee $(REF) >/dev/null; \
+	fi
+	@if [ -s $(REF) ] && tail -c1 $(REF) | grep -q . ; then \
+    echo >> $(REF); \
+    	tr -d '\r' < $(REF) > temp_file && mv temp_file $(REF); \
+	fi
+	@diff -q $(OUTPUT) $(REF) > /dev/null; \
+	if [ $$? -eq 0 ]; then \
+		echo "Pass"; \
+	else \
+		echo "Fail"; \
+	fi
+
+# Rule to run the program
+run: $(TARGET)
+	./$(TARGET) $(INPUT) $(OUTPUT)
+
+# Rule to clean generated files
+clean:
+	rm -f $(TARGET)
diff --git a/lab08/input1.txt b/lab08/input1.txt
new file mode 100644
index 0000000..826c19c
--- /dev/null
+++ b/lab08/input1.txt
@@ -0,0 +1,106 @@
+1
+Johnston Maria A0413808 97 49
+Bryant Rhonda A0142192 1 45
+Bailey Candice A0834662 98 38
+Campbell Matthew A0622975 76 83
+May Ryan A0760904 39 97
+Miranda David A0330182 86 48
+Henry Karen A0431273 15 84
+Middleton Sarah A0231710 79 25
+Gilbert Howard A0212656 89 73
+Castro Robert A0261725 94 12
+Lara Robert A0368288 80 80
+Lara Robert A0368288 81 80
+Lara Robert A0368289 80 81
+Wells Brittany A0660122 13 6
+Adams Cynthia A0627095 20 20
+Morse Douglas A0258366 18 23
+Patel Derrick A0570531 64 70
+Swanson Alan A0730535 33 18
+Taylor Andrew A0139853 49 13
+Brown Brian A0103518 99 1
+Lee Patrick A0893874 95 73
+Carter Christine A0785415 42 50
+Henderson Andrew A0371183 29 58
+Anderson Brett A0168017 36 56
+Simon Thomas A0517482 50 56
+Lane Nancy A0542001 51 30
+Smith Anthony A0410478 41 28
+Summers Michael A0893440 55 50
+Singleton Jordan A0566335 59 10
+Lawrence Michelle A0241228 17 22
+Castillo Shawn A0908873 65 58
+Newman David A0665229 40 53
+Richards Shawn A0942153 62 91
+Berger Keith A0568406 56 46
+Williams Kimberly A0731536 1 6
+Terry Marcia A0996692 43 77
+Collins Christopher A0669187 8 28
+Mclaughlin Stephanie A0766027 31 6
+Fowler Clayton A0513357 70 70
+Richards Veronica A0958309 49 93
+Perkins Arthur A0437488 66 49
+Lopez Christine A0396434 80 4
+Mclaughlin Brandon A0816497 48 47
+Rios Stacey A0296736 69 83
+Gray Teresa A0797916 60 60
+Chapman Angela A0149524 2 42
+Lewis Stacey A0284552 99 97
+Day Christopher A0322878 27 48
+Williams Richard A0971344 96 46
+Ward Mark A0460420 26 44
+Dean Derrick A0888238 3 88
+Stone James A0364579 79 19
+Wagner Kylie A0950922 38 58
+Martinez April A0987945 47 58
+Dodson Steven A0858775 96 92
+Hanna Tiffany A0497426 41 24
+Reed Robert A0657526 74 78
+Valdez Abigail A0760928 23 30
+Rivas Jeremy A0305368 89 12
+Morrow Lauren A0916826 90 90
+Callahan Amy A0435370 68 67
+Brown Shane A0738510 57 70
+Porter Michael A0922166 64 69
+Bailey Aaron A0208249 52 99
+Smith Adam A0782612 81 0
+Meza Shannon A0159196 45 35
+Bell Zachary A0101500 11 78
+Pratt Ricky A0768873 58 39
+Stewart Alison A0772659 31 39
+Wilkinson Robert A0133880 58 34
+Johnson Gregory A0102285 65 12
+Duarte Leslie A0347545 9 12
+Patterson Glen A0685261 72 25
+Griffin Benjamin A0699185 64 96
+Bowen Victoria A0795992 44 35
+Brown Tracy A0819034 95 33
+Montgomery Jamie A0962876 87 74
+Peters James A0207655 25 88
+Moss Kelly A0302483 52 12
+Malone Jacob A0962010 57 87
+Perry Eric A0730019 98 97
+Perry Eric A0730019 97 98
+Perry Eric A0730020 98 97
+Hernandez Denise A0874151 55 57
+Hughes Cynthia A0816146 41 68
+Morales Katherine A0253258 93 49
+Lucas Jessica A0104732 38 13
+Small Alexander A0127412 70 13
+Anderson Christina A0973331 56 100
+Perry Frank A0856521 52 36
+Watson Mitchell A0735949 66 54
+Webb Shawn A0526252 87 94
+Estrada Sheri A0389976 68 35
+Montoya Mark A0367381 5 50
+Patterson Sandra A0848894 41 94
+Vang Jonathan A0696603 59 33
+Scott Cindy A0888243 49 30
+Hicks David A0858335 57 63
+Berry Jacqueline A0483351 87 68
+Washington Kenneth A0696548 51 77
+Drake Brenda A0395400 64 5
+Ward Alexis A0165533 48 32
+Phillips Karen A0354175 65 51
+Johnson Kyle A0273834 57 88
+E
diff --git a/lab08/input2.txt b/lab08/input2.txt
new file mode 100644
index 0000000..d299a02
--- /dev/null
+++ b/lab08/input2.txt
@@ -0,0 +1,106 @@
+2
+Johnston Maria A0413808 97 49
+Bryant Rhonda A0142192 1 45
+Bailey Candice A0834662 98 38
+Campbell Matthew A0622975 76 83
+May Ryan A0760904 39 97
+Miranda David A0330182 86 48
+Henry Karen A0431273 15 84
+Middleton Sarah A0231710 79 25
+Gilbert Howard A0212656 89 73
+Castro Robert A0261725 94 12
+Lara Robert A0368288 80 80
+Lara Robert A0368288 81 80
+Lara Robert A0368289 80 81
+Wells Brittany A0660122 13 6
+Adams Cynthia A0627095 20 20
+Morse Douglas A0258366 18 23
+Patel Derrick A0570531 64 70
+Swanson Alan A0730535 33 18
+Taylor Andrew A0139853 49 13
+Brown Brian A0103518 99 1
+Lee Patrick A0893874 95 73
+Carter Christine A0785415 42 50
+Henderson Andrew A0371183 29 58
+Anderson Brett A0168017 36 56
+Simon Thomas A0517482 50 56
+Lane Nancy A0542001 51 30
+Smith Anthony A0410478 41 28
+Summers Michael A0893440 55 50
+Singleton Jordan A0566335 59 10
+Lawrence Michelle A0241228 17 22
+Castillo Shawn A0908873 65 58
+Newman David A0665229 40 53
+Richards Shawn A0942153 62 91
+Berger Keith A0568406 56 46
+Williams Kimberly A0731536 1 6
+Terry Marcia A0996692 43 77
+Collins Christopher A0669187 8 28
+Mclaughlin Stephanie A0766027 31 6
+Fowler Clayton A0513357 70 70
+Richards Veronica A0958309 49 93
+Perkins Arthur A0437488 66 49
+Lopez Christine A0396434 80 4
+Mclaughlin Brandon A0816497 48 47
+Rios Stacey A0296736 69 83
+Gray Teresa A0797916 60 60
+Chapman Angela A0149524 2 42
+Lewis Stacey A0284552 99 97
+Day Christopher A0322878 27 48
+Williams Richard A0971344 96 46
+Ward Mark A0460420 26 44
+Dean Derrick A0888238 3 88
+Stone James A0364579 79 19
+Wagner Kylie A0950922 38 58
+Martinez April A0987945 47 58
+Dodson Steven A0858775 96 92
+Hanna Tiffany A0497426 41 24
+Reed Robert A0657526 74 78
+Valdez Abigail A0760928 23 30
+Rivas Jeremy A0305368 89 12
+Morrow Lauren A0916826 90 90
+Callahan Amy A0435370 68 67
+Brown Shane A0738510 57 70
+Porter Michael A0922166 64 69
+Bailey Aaron A0208249 52 99
+Smith Adam A0782612 81 0
+Meza Shannon A0159196 45 35
+Bell Zachary A0101500 11 78
+Pratt Ricky A0768873 58 39
+Stewart Alison A0772659 31 39
+Wilkinson Robert A0133880 58 34
+Johnson Gregory A0102285 65 12
+Duarte Leslie A0347545 9 12
+Patterson Glen A0685261 72 25
+Griffin Benjamin A0699185 64 96
+Bowen Victoria A0795992 44 35
+Brown Tracy A0819034 95 33
+Montgomery Jamie A0962876 87 74
+Peters James A0207655 25 88
+Moss Kelly A0302483 52 12
+Malone Jacob A0962010 57 87
+Perry Eric A0730019 98 97
+Perry Eric A0730019 97 98
+Perry Eric A0730020 98 97
+Hernandez Denise A0874151 55 57
+Hughes Cynthia A0816146 41 68
+Morales Katherine A0253258 93 49
+Lucas Jessica A0104732 38 13
+Small Alexander A0127412 70 13
+Anderson Christina A0973331 56 100
+Perry Frank A0856521 52 36
+Watson Mitchell A0735949 66 54
+Webb Shawn A0526252 87 94
+Estrada Sheri A0389976 68 35
+Montoya Mark A0367381 5 50
+Patterson Sandra A0848894 41 94
+Vang Jonathan A0696603 59 33
+Scott Cindy A0888243 49 30
+Hicks David A0858335 57 63
+Berry Jacqueline A0483351 87 68
+Washington Kenneth A0696548 51 77
+Drake Brenda A0395400 64 5
+Ward Alexis A0165533 48 32
+Phillips Karen A0354175 65 51
+Johnson Kyle A0273834 57 88
+E
diff --git a/lab08/input3.txt b/lab08/input3.txt
new file mode 100644
index 0000000..811ebbe
--- /dev/null
+++ b/lab08/input3.txt
@@ -0,0 +1,106 @@
+3
+Johnston Maria A0413808 97 49
+Bryant Rhonda A0142192 1 45
+Bailey Candice A0834662 98 38
+Campbell Matthew A0622975 76 83
+May Ryan A0760904 39 97
+Miranda David A0330182 86 48
+Henry Karen A0431273 15 84
+Middleton Sarah A0231710 79 25
+Gilbert Howard A0212656 89 73
+Castro Robert A0261725 94 12
+Lara Robert A0368288 80 80
+Lara Robert A0368288 81 80
+Lara Robert A0368289 80 81
+Wells Brittany A0660122 13 6
+Adams Cynthia A0627095 20 20
+Morse Douglas A0258366 18 23
+Patel Derrick A0570531 64 70
+Swanson Alan A0730535 33 18
+Taylor Andrew A0139853 49 13
+Brown Brian A0103518 99 1
+Lee Patrick A0893874 95 73
+Carter Christine A0785415 42 50
+Henderson Andrew A0371183 29 58
+Anderson Brett A0168017 36 56
+Simon Thomas A0517482 50 56
+Lane Nancy A0542001 51 30
+Smith Anthony A0410478 41 28
+Summers Michael A0893440 55 50
+Singleton Jordan A0566335 59 10
+Lawrence Michelle A0241228 17 22
+Castillo Shawn A0908873 65 58
+Newman David A0665229 40 53
+Richards Shawn A0942153 62 91
+Berger Keith A0568406 56 46
+Williams Kimberly A0731536 1 6
+Terry Marcia A0996692 43 77
+Collins Christopher A0669187 8 28
+Mclaughlin Stephanie A0766027 31 6
+Fowler Clayton A0513357 70 70
+Richards Veronica A0958309 49 93
+Perkins Arthur A0437488 66 49
+Lopez Christine A0396434 80 4
+Mclaughlin Brandon A0816497 48 47
+Rios Stacey A0296736 69 83
+Gray Teresa A0797916 60 60
+Chapman Angela A0149524 2 42
+Lewis Stacey A0284552 99 97
+Day Christopher A0322878 27 48
+Williams Richard A0971344 96 46
+Ward Mark A0460420 26 44
+Dean Derrick A0888238 3 88
+Stone James A0364579 79 19
+Wagner Kylie A0950922 38 58
+Martinez April A0987945 47 58
+Dodson Steven A0858775 96 92
+Hanna Tiffany A0497426 41 24
+Reed Robert A0657526 74 78
+Valdez Abigail A0760928 23 30
+Rivas Jeremy A0305368 89 12
+Morrow Lauren A0916826 90 90
+Callahan Amy A0435370 68 67
+Brown Shane A0738510 57 70
+Porter Michael A0922166 64 69
+Bailey Aaron A0208249 52 99
+Smith Adam A0782612 81 0
+Meza Shannon A0159196 45 35
+Bell Zachary A0101500 11 78
+Pratt Ricky A0768873 58 39
+Stewart Alison A0772659 31 39
+Wilkinson Robert A0133880 58 34
+Johnson Gregory A0102285 65 12
+Duarte Leslie A0347545 9 12
+Patterson Glen A0685261 72 25
+Griffin Benjamin A0699185 64 96
+Bowen Victoria A0795992 44 35
+Brown Tracy A0819034 95 33
+Montgomery Jamie A0962876 87 74
+Peters James A0207655 25 88
+Moss Kelly A0302483 52 12
+Malone Jacob A0962010 57 87
+Perry Eric A0730019 98 97
+Perry Eric A0730019 97 98
+Perry Eric A0730020 98 97
+Hernandez Denise A0874151 55 57
+Hughes Cynthia A0816146 41 68
+Morales Katherine A0253258 93 49
+Lucas Jessica A0104732 38 13
+Small Alexander A0127412 70 13
+Anderson Christina A0973331 56 100
+Perry Frank A0856521 52 36
+Watson Mitchell A0735949 66 54
+Webb Shawn A0526252 87 94
+Estrada Sheri A0389976 68 35
+Montoya Mark A0367381 5 50
+Patterson Sandra A0848894 41 94
+Vang Jonathan A0696603 59 33
+Scott Cindy A0888243 49 30
+Hicks David A0858335 57 63
+Berry Jacqueline A0483351 87 68
+Washington Kenneth A0696548 51 77
+Drake Brenda A0395400 64 5
+Ward Alexis A0165533 48 32
+Phillips Karen A0354175 65 51
+Johnson Kyle A0273834 57 88
+E
diff --git a/lab08/input4.txt b/lab08/input4.txt
new file mode 100644
index 0000000..a5d17b3
--- /dev/null
+++ b/lab08/input4.txt
@@ -0,0 +1,106 @@
+4
+Johnston Maria A0413808 97 49
+Bryant Rhonda A0142192 1 45
+Bailey Candice A0834662 98 38
+Campbell Matthew A0622975 76 83
+May Ryan A0760904 39 97
+Miranda David A0330182 86 48
+Henry Karen A0431273 15 84
+Middleton Sarah A0231710 79 25
+Gilbert Howard A0212656 89 73
+Castro Robert A0261725 94 12
+Lara Robert A0368288 80 80
+Lara Robert A0368288 81 80
+Lara Robert A0368289 80 81
+Wells Brittany A0660122 13 6
+Adams Cynthia A0627095 20 20
+Morse Douglas A0258366 18 23
+Patel Derrick A0570531 64 70
+Swanson Alan A0730535 33 18
+Taylor Andrew A0139853 49 13
+Brown Brian A0103518 99 1
+Lee Patrick A0893874 95 73
+Carter Christine A0785415 42 50
+Henderson Andrew A0371183 29 58
+Anderson Brett A0168017 36 56
+Simon Thomas A0517482 50 56
+Lane Nancy A0542001 51 30
+Smith Anthony A0410478 41 28
+Summers Michael A0893440 55 50
+Singleton Jordan A0566335 59 10
+Lawrence Michelle A0241228 17 22
+Castillo Shawn A0908873 65 58
+Newman David A0665229 40 53
+Richards Shawn A0942153 62 91
+Berger Keith A0568406 56 46
+Williams Kimberly A0731536 1 6
+Terry Marcia A0996692 43 77
+Collins Christopher A0669187 8 28
+Mclaughlin Stephanie A0766027 31 6
+Fowler Clayton A0513357 70 70
+Richards Veronica A0958309 49 93
+Perkins Arthur A0437488 66 49
+Lopez Christine A0396434 80 4
+Mclaughlin Brandon A0816497 48 47
+Rios Stacey A0296736 69 83
+Gray Teresa A0797916 60 60
+Chapman Angela A0149524 2 42
+Lewis Stacey A0284552 99 97
+Day Christopher A0322878 27 48
+Williams Richard A0971344 96 46
+Ward Mark A0460420 26 44
+Dean Derrick A0888238 3 88
+Stone James A0364579 79 19
+Wagner Kylie A0950922 38 58
+Martinez April A0987945 47 58
+Dodson Steven A0858775 96 92
+Hanna Tiffany A0497426 41 24
+Reed Robert A0657526 74 78
+Valdez Abigail A0760928 23 30
+Rivas Jeremy A0305368 89 12
+Morrow Lauren A0916826 90 90
+Callahan Amy A0435370 68 67
+Brown Shane A0738510 57 70
+Porter Michael A0922166 64 69
+Bailey Aaron A0208249 52 99
+Smith Adam A0782612 81 0
+Meza Shannon A0159196 45 35
+Bell Zachary A0101500 11 78
+Pratt Ricky A0768873 58 39
+Stewart Alison A0772659 31 39
+Wilkinson Robert A0133880 58 34
+Johnson Gregory A0102285 65 12
+Duarte Leslie A0347545 9 12
+Patterson Glen A0685261 72 25
+Griffin Benjamin A0699185 64 96
+Bowen Victoria A0795992 44 35
+Brown Tracy A0819034 95 33
+Montgomery Jamie A0962876 87 74
+Peters James A0207655 25 88
+Moss Kelly A0302483 52 12
+Malone Jacob A0962010 57 87
+Perry Eric A0730019 98 97
+Perry Eric A0730019 97 98
+Perry Eric A0730020 98 97
+Hernandez Denise A0874151 55 57
+Hughes Cynthia A0816146 41 68
+Morales Katherine A0253258 93 49
+Lucas Jessica A0104732 38 13
+Small Alexander A0127412 70 13
+Anderson Christina A0973331 56 100
+Perry Frank A0856521 52 36
+Watson Mitchell A0735949 66 54
+Webb Shawn A0526252 87 94
+Estrada Sheri A0389976 68 35
+Montoya Mark A0367381 5 50
+Patterson Sandra A0848894 41 94
+Vang Jonathan A0696603 59 33
+Scott Cindy A0888243 49 30
+Hicks David A0858335 57 63
+Berry Jacqueline A0483351 87 68
+Washington Kenneth A0696548 51 77
+Drake Brenda A0395400 64 5
+Ward Alexis A0165533 48 32
+Phillips Karen A0354175 65 51
+Johnson Kyle A0273834 57 88
+E
diff --git a/lab08/input5.txt b/lab08/input5.txt
new file mode 100644
index 0000000..6a07554
--- /dev/null
+++ b/lab08/input5.txt
@@ -0,0 +1,106 @@
+5
+Johnston Maria A0413808 97 49
+Bryant Rhonda A0142192 1 45
+Bailey Candice A0834662 98 38
+Campbell Matthew A0622975 76 83
+May Ryan A0760904 39 97
+Miranda David A0330182 86 48
+Henry Karen A0431273 15 84
+Middleton Sarah A0231710 79 25
+Gilbert Howard A0212656 89 73
+Castro Robert A0261725 94 12
+Lara Robert A0368288 80 80
+Lara Robert A0368288 81 80
+Lara Robert A0368289 80 81
+Wells Brittany A0660122 13 6
+Adams Cynthia A0627095 20 20
+Morse Douglas A0258366 18 23
+Patel Derrick A0570531 64 70
+Swanson Alan A0730535 33 18
+Taylor Andrew A0139853 49 13
+Brown Brian A0103518 99 1
+Lee Patrick A0893874 95 73
+Carter Christine A0785415 42 50
+Henderson Andrew A0371183 29 58
+Anderson Brett A0168017 36 56
+Simon Thomas A0517482 50 56
+Lane Nancy A0542001 51 30
+Smith Anthony A0410478 41 28
+Summers Michael A0893440 55 50
+Singleton Jordan A0566335 59 10
+Lawrence Michelle A0241228 17 22
+Castillo Shawn A0908873 65 58
+Newman David A0665229 40 53
+Richards Shawn A0942153 62 91
+Berger Keith A0568406 56 46
+Williams Kimberly A0731536 1 6
+Terry Marcia A0996692 43 77
+Collins Christopher A0669187 8 28
+Mclaughlin Stephanie A0766027 31 6
+Fowler Clayton A0513357 70 70
+Richards Veronica A0958309 49 93
+Perkins Arthur A0437488 66 49
+Lopez Christine A0396434 80 4
+Mclaughlin Brandon A0816497 48 47
+Rios Stacey A0296736 69 83
+Gray Teresa A0797916 60 60
+Chapman Angela A0149524 2 42
+Lewis Stacey A0284552 99 97
+Day Christopher A0322878 27 48
+Williams Richard A0971344 96 46
+Ward Mark A0460420 26 44
+Dean Derrick A0888238 3 88
+Stone James A0364579 79 19
+Wagner Kylie A0950922 38 58
+Martinez April A0987945 47 58
+Dodson Steven A0858775 96 92
+Hanna Tiffany A0497426 41 24
+Reed Robert A0657526 74 78
+Valdez Abigail A0760928 23 30
+Rivas Jeremy A0305368 89 12
+Morrow Lauren A0916826 90 90
+Callahan Amy A0435370 68 67
+Brown Shane A0738510 57 70
+Porter Michael A0922166 64 69
+Bailey Aaron A0208249 52 99
+Smith Adam A0782612 81 0
+Meza Shannon A0159196 45 35
+Bell Zachary A0101500 11 78
+Pratt Ricky A0768873 58 39
+Stewart Alison A0772659 31 39
+Wilkinson Robert A0133880 58 34
+Johnson Gregory A0102285 65 12
+Duarte Leslie A0347545 9 12
+Patterson Glen A0685261 72 25
+Griffin Benjamin A0699185 64 96
+Bowen Victoria A0795992 44 35
+Brown Tracy A0819034 95 33
+Montgomery Jamie A0962876 87 74
+Peters James A0207655 25 88
+Moss Kelly A0302483 52 12
+Malone Jacob A0962010 57 87
+Perry Eric A0730019 98 97
+Perry Eric A0730019 97 98
+Perry Eric A0730020 98 97
+Hernandez Denise A0874151 55 57
+Hughes Cynthia A0816146 41 68
+Morales Katherine A0253258 93 49
+Lucas Jessica A0104732 38 13
+Small Alexander A0127412 70 13
+Anderson Christina A0973331 56 100
+Perry Frank A0856521 52 36
+Watson Mitchell A0735949 66 54
+Webb Shawn A0526252 87 94
+Estrada Sheri A0389976 68 35
+Montoya Mark A0367381 5 50
+Patterson Sandra A0848894 41 94
+Vang Jonathan A0696603 59 33
+Scott Cindy A0888243 49 30
+Hicks David A0858335 57 63
+Berry Jacqueline A0483351 87 68
+Washington Kenneth A0696548 51 77
+Drake Brenda A0395400 64 5
+Ward Alexis A0165533 48 32
+Phillips Karen A0354175 65 51
+Johnson Kyle A0273834 57 88
+E
diff --git a/lab08/lab8.c b/lab08/lab8.c
new file mode 100644
index 0000000..97d7635
--- /dev/null
+++ b/lab08/lab8.c
@@ -0,0 +1,232 @@
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <stdint.h>
+
+#define MIN_OPTION 1
+#define MAX_OPTION 5
+
+#define BUFFER_SIZE 50
+
+#define MAX_STUDENTS 111
+
+#define AVERAGE_NINETY_PLUS 1
+#define AVERAGE_EIGHTY_TO_NINETY 2
+#define AVERAGE_SEVENTY_TO_EIGHTY 3
+#define AVERAGE_SIXTY_TO_SEVENTY 4
+#define AVERAGE_SIXTY_BELOW 5
+
+#define MIN_THRESHOLD 0
+#define MAX_THRESHOLD 101
+#define NINETY_PLUS_THRESHOLD 90
+#define EIGHTY_PLUS_THRESHOLD 80
+#define SEVENTY_PLUS_THRESHOLD 70
+#define SIXTY_PLUS_THRESHOLD 60
+
+#define MIN_GRADE 0
+#define MAX_GRADE 100
+#define EMPTY_STRING ""
+
+char A_NUMBER[] = "A01385066";
+
+typedef struct
+{
+    char lastName[BUFFER_SIZE];
+    char firstName[BUFFER_SIZE];
+    char studentNum[BUFFER_SIZE];
+    int  midtermGrade;
+    int  finalGrade;
+} STUDENT;
+
+void writeStudents(
+    char    *outputPath,
+    STUDENT students[MAX_STUDENTS],
+    size_t  numStudents,
+    size_t  minThresholdIncusive,
+    size_t  maxThresholdExclusive
+)
+{
+    FILE *outputFile;
+
+    outputFile  = fopen(outputPath, "w");
+
+    if (outputFile == NULL)
+    {
+        printf("Failed to open file\n");
+        return;
+    }
+
+    for (int i = 0; i < numStudents; i++)
+    {
+        float average = ((float)students[i].midtermGrade + (float)students[i].finalGrade) / 2;
+
+        if (average >= minThresholdIncusive &&
+            average < maxThresholdExclusive)
+        {
+            fprintf(outputFile, "%s %s %s %d %d\n",
+                students[i].lastName,
+                students[i].firstName,
+                students[i].studentNum,
+                students[i].midtermGrade,
+                students[i].finalGrade
+            );
+        }
+    }
+
+    fclose(outputFile);
+}
+
+int compareStudent(const void *a, const void *b)
+{
+    const STUDENT *studentA = (const STUDENT *)a;
+    const STUDENT *studentB = (const STUDENT *)b;
+
+    int cmp = strcmp(studentA->lastName, studentB->lastName);
+    if (cmp != 0)
+    {
+        return cmp;
+    }
+
+    cmp = strcmp(studentA->firstName, studentB->firstName);
+    if (cmp != 0)
+    {
+        return cmp;
+    }
+
+    cmp = strcmp(studentA->studentNum, studentB->studentNum);
+    if (cmp != 0)
+    {
+        return cmp;
+    }
+
+    float diff = studentA->midtermGrade - studentB->midtermGrade;
+    if (diff != 0)
+    {
+        return (diff > 0) - (diff < 0);
+    }
+
+    diff = studentA->finalGrade - studentB->finalGrade;
+    return (diff > 0) - (diff < 0);
+}
+
+int main(int argc, char *argv[])
+{
+    if (argc != 3)
+    {
+        printf("Usage: lab7.c <input_file> <output_file>\n");
+        return 1;
+    }
+
+    char *inputPath;
+    char *outputPath;
+    FILE *inputFile;
+
+    inputPath  = argv[1];
+    outputPath = argv[2];
+    inputFile  = fopen(inputPath, "r");
+
+    if (inputFile == NULL)
+    {
+        printf("Failed to open file\n");
+        return 1;
+    }
+
+    int option;
+    STUDENT students[MAX_STUDENTS];
+    size_t  numStudents;
+
+    numStudents = 0;
+
+    fscanf(inputFile, "%d", &option);
+    if (option < MIN_OPTION || option > MAX_OPTION)
+    {
+        printf("Error: Invalid option\n");
+        return -1;
+    }
+
+    char lastName[BUFFER_SIZE];
+    char firstName[BUFFER_SIZE];
+    char studentNum[BUFFER_SIZE];
+    int  midtermGrade;
+    int  finalGrade;
+
+    while (fscanf(inputFile, "%s %s %s %d %d",
+        firstName,
+        lastName,
+        studentNum,
+        &midtermGrade,
+        &finalGrade
+    ) == 5)
+    {
+        if (midtermGrade < MIN_GRADE ||
+            midtermGrade > MAX_GRADE ||
+            finalGrade   < MIN_GRADE ||
+            finalGrade   > MAX_GRADE)
+        {
+            printf("Error: Invalid student grade found\n");
+            return -1;
+        }
+
+        if (strcmp(firstName,  "") == 0 ||
+            strcmp(lastName,   "") == 0 ||
+            strcmp(studentNum, "") == 0)
+        {
+            printf("Error: Missing first name, last name, or student number\n");
+            return -1;
+        }
+
+        STUDENT newStudent;
+        strcpy(newStudent.firstName, lastName);
+        strcpy(newStudent.lastName, firstName);
+        strcpy(newStudent.studentNum, studentNum);
+        newStudent.midtermGrade = midtermGrade;
+        newStudent.finalGrade   = finalGrade;
+
+        students[numStudents] = newStudent;
+        numStudents++;
+    }
+
+    fclose(inputFile);
+
+    qsort(students, numStudents, sizeof(STUDENT), compareStudent);
+
+    size_t minThresholdInclusive;
+    size_t maxThresholdExclusive;
+
+    switch (option)
+    {
+        case AVERAGE_NINETY_PLUS:
+            minThresholdInclusive = NINETY_PLUS_THRESHOLD;
+            maxThresholdExclusive = MAX_THRESHOLD;
+            break;
+        case AVERAGE_EIGHTY_TO_NINETY:
+            minThresholdInclusive = EIGHTY_PLUS_THRESHOLD;
+            maxThresholdExclusive = NINETY_PLUS_THRESHOLD;
+            break;
+        case AVERAGE_SEVENTY_TO_EIGHTY:
+            minThresholdInclusive = SEVENTY_PLUS_THRESHOLD;
+            maxThresholdExclusive = EIGHTY_PLUS_THRESHOLD;
+            break;
+        case AVERAGE_SIXTY_TO_SEVENTY:
+            minThresholdInclusive = SIXTY_PLUS_THRESHOLD;
+            maxThresholdExclusive = SEVENTY_PLUS_THRESHOLD;
+            break;
+        case AVERAGE_SIXTY_BELOW:
+            minThresholdInclusive = MIN_THRESHOLD;
+            maxThresholdExclusive = SIXTY_PLUS_THRESHOLD;
+            break;
+        default:
+            printf("Error: Invalid option\n");
+            return -1;
+    }
+
+    writeStudents(
+        outputPath,
+        students,
+        numStudents,
+        minThresholdInclusive,
+        maxThresholdExclusive
+    );
+
+    return 0;
+}
diff --git a/lab08/output.txt b/lab08/output.txt
new file mode 100644
index 0000000..4b46191
--- /dev/null
+++ b/lab08/output.txt
@@ -0,0 +1,61 @@
+Adams Cynthia A0627095 20 20
+Anderson Brett A0168017 36 56
+Bell Zachary A0101500 11 78
+Berger Keith A0568406 56 46
+Bowen Victoria A0795992 44 35
+Brown Brian A0103518 99 1
+Bryant Rhonda A0142192 1 45
+Carter Christine A0785415 42 50
+Castro Robert A0261725 94 12
+Chapman Angela A0149524 2 42
+Collins Christopher A0669187 8 28
+Day Christopher A0322878 27 48
+Dean Derrick A0888238 3 88
+Drake Brenda A0395400 64 5
+Duarte Leslie A0347545 9 12
+Estrada Sheri A0389976 68 35
+Hanna Tiffany A0497426 41 24
+Henderson Andrew A0371183 29 58
+Henry Karen A0431273 15 84
+Hernandez Denise A0874151 55 57
+Hughes Cynthia A0816146 41 68
+Johnson Gregory A0102285 65 12
+Lane Nancy A0542001 51 30
+Lawrence Michelle A0241228 17 22
+Lopez Christine A0396434 80 4
+Lucas Jessica A0104732 38 13
+Martinez April A0987945 47 58
+Mclaughlin Brandon A0816497 48 47
+Mclaughlin Stephanie A0766027 31 6
+Meza Shannon A0159196 45 35
+Middleton Sarah A0231710 79 25
+Montoya Mark A0367381 5 50
+Morse Douglas A0258366 18 23
+Moss Kelly A0302483 52 12
+Newman David A0665229 40 53
+Patterson Glen A0685261 72 25
+Perkins Arthur A0437488 66 49
+Perry Frank A0856521 52 36
+Peters James A0207655 25 88
+Phillips Karen A0354175 65 51
+Pratt Ricky A0768873 58 39
+Rivas Jeremy A0305368 89 12
+Scott Cindy A0888243 49 30
+Simon Thomas A0517482 50 56
+Singleton Jordan A0566335 59 10
+Small Alexander A0127412 70 13
+Smith Adam A0782612 81 0
+Smith Anthony A0410478 41 28
+Stewart Alison A0772659 31 39
+Stone James A0364579 79 19
+Summers Michael A0893440 55 50
+Swanson Alan A0730535 33 18
+Taylor Andrew A0139853 49 13
+Valdez Abigail A0760928 23 30
+Vang Jonathan A0696603 59 33
+Wagner Kylie A0950922 38 58
+Ward Alexis A0165533 48 32
+Ward Mark A0460420 26 44
+Wells Brittany A0660122 13 6
+Wilkinson Robert A0133880 58 34
+Williams Kimberly A0731536 1 6
diff --git a/lab08/ref1.txt b/lab08/ref1.txt
new file mode 100644
index 0000000..d40014e
--- /dev/null
+++ b/lab08/ref1.txt
@@ -0,0 +1,7 @@
+Dodson Steven A0858775 96 92
+Lewis Stacey A0284552 99 97
+Morrow Lauren A0916826 90 90
+Perry Eric A0730019 97 98
+Perry Eric A0730019 98 97
+Perry Eric A0730020 98 97
+Webb Shawn A0526252 87 94
diff --git a/lab08/ref2.txt b/lab08/ref2.txt
new file mode 100644
index 0000000..2b1b2e0
--- /dev/null
+++ b/lab08/ref2.txt
@@ -0,0 +1,7 @@
+Gilbert Howard A0212656 89 73
+Griffin Benjamin A0699185 64 96
+Lara Robert A0368288 80 80
+Lara Robert A0368288 81 80
+Lara Robert A0368289 80 81
+Lee Patrick A0893874 95 73
+Montgomery Jamie A0962876 87 74
diff --git a/lab08/ref3.txt b/lab08/ref3.txt
new file mode 100644
index 0000000..9729a1b
--- /dev/null
+++ b/lab08/ref3.txt
@@ -0,0 +1,14 @@
+Anderson Christina A0973331 56 100
+Bailey Aaron A0208249 52 99
+Berry Jacqueline A0483351 87 68
+Campbell Matthew A0622975 76 83
+Fowler Clayton A0513357 70 70
+Johnson Kyle A0273834 57 88
+Johnston Maria A0413808 97 49
+Malone Jacob A0962010 57 87
+Morales Katherine A0253258 93 49
+Reed Robert A0657526 74 78
+Richards Shawn A0942153 62 91
+Richards Veronica A0958309 49 93
+Rios Stacey A0296736 69 83
+Williams Richard A0971344 96 46
diff --git a/lab08/ref4.txt b/lab08/ref4.txt
new file mode 100644
index 0000000..371c374
--- /dev/null
+++ b/lab08/ref4.txt
@@ -0,0 +1,15 @@
+Bailey Candice A0834662 98 38
+Brown Shane A0738510 57 70
+Brown Tracy A0819034 95 33
+Callahan Amy A0435370 68 67
+Castillo Shawn A0908873 65 58
+Gray Teresa A0797916 60 60
+Hicks David A0858335 57 63
+May Ryan A0760904 39 97
+Miranda David A0330182 86 48
+Patel Derrick A0570531 64 70
+Patterson Sandra A0848894 41 94
+Porter Michael A0922166 64 69
+Terry Marcia A0996692 43 77
+Washington Kenneth A0696548 51 77
+Watson Mitchell A0735949 66 54
diff --git a/lab08/ref5.txt b/lab08/ref5.txt
new file mode 100644
index 0000000..4b46191
--- /dev/null
+++ b/lab08/ref5.txt
@@ -0,0 +1,61 @@
+Adams Cynthia A0627095 20 20
+Anderson Brett A0168017 36 56
+Bell Zachary A0101500 11 78
+Berger Keith A0568406 56 46
+Bowen Victoria A0795992 44 35
+Brown Brian A0103518 99 1
+Bryant Rhonda A0142192 1 45
+Carter Christine A0785415 42 50
+Castro Robert A0261725 94 12
+Chapman Angela A0149524 2 42
+Collins Christopher A0669187 8 28
+Day Christopher A0322878 27 48
+Dean Derrick A0888238 3 88
+Drake Brenda A0395400 64 5
+Duarte Leslie A0347545 9 12
+Estrada Sheri A0389976 68 35
+Hanna Tiffany A0497426 41 24
+Henderson Andrew A0371183 29 58
+Henry Karen A0431273 15 84
+Hernandez Denise A0874151 55 57
+Hughes Cynthia A0816146 41 68
+Johnson Gregory A0102285 65 12
+Lane Nancy A0542001 51 30
+Lawrence Michelle A0241228 17 22
+Lopez Christine A0396434 80 4
+Lucas Jessica A0104732 38 13
+Martinez April A0987945 47 58
+Mclaughlin Brandon A0816497 48 47
+Mclaughlin Stephanie A0766027 31 6
+Meza Shannon A0159196 45 35
+Middleton Sarah A0231710 79 25
+Montoya Mark A0367381 5 50
+Morse Douglas A0258366 18 23
+Moss Kelly A0302483 52 12
+Newman David A0665229 40 53
+Patterson Glen A0685261 72 25
+Perkins Arthur A0437488 66 49
+Perry Frank A0856521 52 36
+Peters James A0207655 25 88
+Phillips Karen A0354175 65 51
+Pratt Ricky A0768873 58 39
+Rivas Jeremy A0305368 89 12
+Scott Cindy A0888243 49 30
+Simon Thomas A0517482 50 56
+Singleton Jordan A0566335 59 10
+Small Alexander A0127412 70 13
+Smith Adam A0782612 81 0
+Smith Anthony A0410478 41 28
+Stewart Alison A0772659 31 39
+Stone James A0364579 79 19
+Summers Michael A0893440 55 50
+Swanson Alan A0730535 33 18
+Taylor Andrew A0139853 49 13
+Valdez Abigail A0760928 23 30
+Vang Jonathan A0696603 59 33
+Wagner Kylie A0950922 38 58
+Ward Alexis A0165533 48 32
+Ward Mark A0460420 26 44
+Wells Brittany A0660122 13 6
+Wilkinson Robert A0133880 58 34
+Williams Kimberly A0731536 1 6