diff --git a/subjects/raid2/audit/README.md b/subjects/raid2/audit/README.md
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@@ -0,0 +1,233 @@
+#### Raid 2
+
+##### Try running the program with the arguments: `"".96.4...1" "1...6...4" "5.481.39." "..795..43" ".3..8...." "4.5.23.18" ".1.63..59" ".59.7.83." "..359...7""`
+
+```
+3 9 6 2 4 5 7 8 1
+1 7 8 3 6 9 5 2 4
+5 2 4 8 1 7 3 9 6
+2 8 7 9 5 1 6 4 3
+9 3 1 4 8 6 2 7 5
+4 6 5 7 2 3 9 1 8
+7 1 2 6 3 8 4 5 9
+6 5 9 1 7 4 8 3 2
+8 4 3 5 9 2 1 6 7
+```
+
+###### Does the program returns the value above?
+
+##### Try running the program with the arguments: `""1.58.2..." ".9..764.5" "2..4..819" ".19..73.6" "762.83.9." "....61.5." "..76...3." "43..2.5.1" "6..3.89..""`
+
+```
+1 4 5 8 9 2 6 7 3
+8 9 3 1 7 6 4 2 5
+2 7 6 4 3 5 8 1 9
+5 1 9 2 4 7 3 8 6
+7 6 2 5 8 3 1 9 4
+3 8 4 9 6 1 7 5 2
+9 5 7 6 1 4 2 3 8
+4 3 8 7 2 9 5 6 1
+6 2 1 3 5 8 9 4 7
+```
+
+###### Does the program returns the value above?
+
+##### Try running the program with the arguments: `""..5.3..81" "9.285..6." "6....4.5." "..74.283." "34976...5" "..83..49." "15..87..2" ".9....6.." ".26.495.3""`
+
+```
+4 7 5 9 3 6 2 8 1
+9 3 2 8 5 1 7 6 4
+6 8 1 2 7 4 3 5 9
+5 1 7 4 9 2 8 3 6
+3 4 9 7 6 8 1 2 5
+2 6 8 3 1 5 4 9 7
+1 5 3 6 8 7 9 4 2
+7 9 4 5 2 3 6 1 8
+8 2 6 1 4 9 5 7 3
+```
+
+###### Does the program returns the value above?
+
+##### Try running the program with the arguments: `""34.91..2." ".96.8..41" "..8.2..7." ".6..57.39" "1.2.6.7.." "97..3..64" "45.2.8..6" ".8..9..5." "6.3..189.""`
+
+```
+3 4 7 9 1 5 6 2 8
+2 9 6 7 8 3 5 4 1
+5 1 8 6 2 4 9 7 3
+8 6 4 1 5 7 2 3 9
+1 3 2 4 6 9 7 8 5
+9 7 5 8 3 2 1 6 4
+4 5 9 2 7 8 3 1 6
+7 8 1 3 9 6 4 5 2
+6 2 3 5 4 1 8 9 7
+```
+
+###### Does the program returns the value above?
+
+##### Try running the program with the arguments: `""..73..4.5" "....2.9.." "253.6487." ".9.74.36." "....3..8." "8362.9.47" "1..8.26.3" "6......18" ".8261...4""`
+
+```
+9 6 7 3 8 1 4 2 5
+4 1 8 5 2 7 9 3 6
+2 5 3 9 6 4 8 7 1
+5 9 1 7 4 8 3 6 2
+7 2 4 1 3 6 5 8 9
+8 3 6 2 5 9 1 4 7
+1 4 9 8 7 2 6 5 3
+6 7 5 4 9 3 2 1 8
+3 8 2 6 1 5 7 9 4
+```
+
+###### Does the program returns the value above?
+
+##### Try running the program with the arguments: `""935..7..8" "...3.8.7." "6..5..49." ".73..4..." "4..175.8." ".618..247" ".187....." "..6.8.75." "75.4.3862""`
+
+```
+9 3 5 6 4 7 1 2 8
+1 2 4 3 9 8 6 7 5
+6 8 7 5 2 1 4 9 3
+8 7 3 2 6 4 5 1 9
+4 9 2 1 7 5 3 8 6
+5 6 1 8 3 9 2 4 7
+2 1 8 7 5 6 9 3 4
+3 4 6 9 8 2 7 5 1
+7 5 9 4 1 3 8 6 2
+```
+
+###### Does the program returns the value above?
+
+##### Try running the program with the arguments: `""..5.2...1" ".8735..46" "4...6.5.." ".5.9....." ".7..3541." "69314.857" "7415..6.8" "...284..5" "5.....3.4""`
+
+```
+3 6 5 4 2 9 7 8 1
+2 8 7 3 5 1 9 4 6
+4 1 9 8 6 7 5 3 2
+1 5 4 9 7 8 2 6 3
+8 7 2 6 3 5 4 1 9
+6 9 3 1 4 2 8 5 7
+7 4 1 5 9 3 6 2 8
+9 3 6 2 8 4 1 7 5
+5 2 8 7 1 6 3 9 4
+```
+
+###### Does the program returns the value above?
+
+##### Try running the program with the arguments: `""..75...3." "8..23...9" ".3479.86." "..3..4198" ".4815...3" "..6.23..7" "351.6.78." "4..31...6" ".7...5..2""`
+
+```
+9 6 7 5 4 8 2 3 1
+8 1 5 2 3 6 4 7 9
+2 3 4 7 9 1 8 6 5
+5 2 3 6 7 4 1 9 8
+7 4 8 1 5 9 6 2 3
+1 9 6 8 2 3 5 4 7
+3 5 1 9 6 2 7 8 4
+4 8 2 3 1 7 9 5 6
+6 7 9 4 8 5 3 1 2
+```
+
+###### Does the program returns the value above?
+
+##### Try running the program with the arguments: `"".58..4.21" ".6.853..7" ".39.2...5" "8....1..6" "..37..21." "1.6.825.." "67.2..18." "9..4...5." ".8.9167.2""`
+
+```
+4 2 7 1 9 5 8 3 6
+5 3 1 6 8 2 9 4 7
+8 6 9 3 4 7 2 1 5
+3 5 4 2 7 6 1 8 9
+2 1 6 9 3 8 7 5 4
+9 7 8 4 5 1 6 2 3
+1 9 2 5 6 3 4 7 8
+7 4 3 8 1 9 5 6 2
+6 8 5 7 2 4 3 9 1
+```
+
+###### Does the program returns the value above?
+
+##### Try running the program with the arguments: `"".58..4.21" ".6.853..7" ".39.2...5" "8....1..6" "..37..21." "1.6.825.." "67.2..18." "9..4...5." ".8.9167.2""`
+
+```
+7 5 8 6 9 4 3 2 1
+2 6 1 8 5 3 4 9 7
+4 3 9 1 2 7 8 6 5
+8 2 7 5 4 1 9 3 6
+5 4 3 7 6 9 2 1 8
+1 9 6 3 8 2 5 7 4
+6 7 4 2 3 5 1 8 9
+9 1 2 4 7 8 6 5 3
+3 8 5 9 1 6 7 4 2
+```
+
+###### Does the program returns the value above?
+
+##### Try running the program with the arguments: `"".2.1....6" "53..8294." "8..34...5" "3542761.." "..6.3...4" "9....162." ".9...3.78" "7438.9..." "..5..43.1""`
+
+```
+4 2 7 1 9 5 8 3 6
+5 3 1 6 8 2 9 4 7
+8 6 9 3 4 7 2 1 5
+3 5 4 2 7 6 1 8 9
+2 1 6 9 3 8 7 5 4
+9 7 8 4 5 1 6 2 3
+1 9 2 5 6 3 4 7 8
+7 4 3 8 1 9 5 6 2
+6 8 5 7 2 4 3 9 1
+```
+
+###### Does the program returns the value above?
+
+##### Try running the program with the arguments: `"".932..8." "27.3.85.." ".8.73.254" "9758...31" "....74.6." "6.45.38.7" "7....2.48" "32.4...7." "..8.579..""`
+
+```
+Error
+```
+
+###### Does the program returns the value above?
+
+##### Try running the program with the arguments: `"".867.2..4" ".2.5..8.." "154.9.237" ".7.9.5..1" ".29..4.18" "51.6...42" "2.5.7..83" "...153..." "39...8.75""`
+
+```
+Error
+```
+
+###### Does the program returns the value above?
+
+##### Try running the program with the arguments: `"".7....28." ".2...6.57" "8654729.." "..925..64" ".4..19.7." "7.8..4..9" "3..7..698" "..79.1..." "59..28.39""`
+
+```
+Error
+```
+
+###### Does the program returns the value above?
+
+##### Try running the program with the arguments: `""..213.748" "8.4.....2" ".178.26.." ".68.9.27." ".932....4" "5..46.3.." "..9.24.23" "..63..19." "385..1.2.""`
+
+```
+Error
+```
+
+###### Does the program returns the value above?
+
+##### Try running the program with the arguments: `""9.46.3..1" "37.1..2.6" "..6..93.4" "..13..9.5" "56..91..." "82...461." "..79...4." "425.167.." "1.2..75.8""`
+
+```
+Error
+```
+
+###### Does the program returns the value above?
+
+##### Try running the program with the arguments: `""not" "a" "sudoku""`
+
+```
+Error
+```
+
+###### Does the program returns the value above?
+
+##### Try running the program with the arguments: `""53..8294." "8..34...5" "3542761.." "..6.3...4" "9....162." ".9...3.78" "7438.9..." "..5..43.1""`
+
+```
+Error
+```
+
+###### Does the program returns the value above?