diff --git a/report.md b/report.md
index 5db41ee..0da7ccb 100644
--- a/report.md
+++ b/report.md
@@ -36,7 +36,32 @@ Functions *andColSequenceOnMatrix* and *orColSequenceOnMatrix* are implemented w
 This is the same thing for *andRowSequenceOnMatrix* and *orRowSequenceOnMatrix* :  
 
 ```C
+colSequenceOnMatrix(m:Matrix, operator:(function(bool, bool):bool)): Matrix
+BEGIN
+	a:integer
+	b:integer
+	i:integer
+	j:integer
+	newM:Matrix <- createMatrix()
 
+	rowCount(newM) <- rowCount(m)
+	if (colCount(m) <= 1) then
+		colCount(newM) <- 0
+		colSequenceOnMatrix <- newM
+	endif
+	colCount(newM) <- colCount(m) - 1
+
+	for i from 0 to colCount(m) - 2, step 1
+		for j from 0 to rowCount(m) - 2, step 1
+			a <- getCellValue(m, i, j)
+			b <- getCellValue(m, i + 1, j)
+			if operator(a, b) then
+				setCellValue(newM, i, j, true)
+			endif
+		endfor
+	endfor
+	colSequenceOnMatrix <- newM;
+END
 ```
 
 Here are the algorithm of the function *applyRules* and all the one related to it :