diff --git a/floyd_warshall.c b/floyd_warshall.c
index 4efab70..08b73ac 100644
--- a/floyd_warshall.c
+++ b/floyd_warshall.c
@@ -1,6 +1,6 @@
 #include <stdio.h>
 
-#define N 3
+#define N 5
 
 typedef int Mat[N*N];
 
@@ -26,9 +26,11 @@ int warshall(int old, int ik, int kj) {
 int main( int argc, char *argv[] ) {
 	Mat C =
     {
-        0 , 0 , 0 ,
-        1 , 0 , 0 ,
-        0 , 1 , 0
+        0 , 1 , 0 , 0 , 0,
+        0 , 0 , 1 , 0 , 0,
+        0 , 0 , 0 , 0 , 0,
+        1 , 0 , 0 , 0 , 0,
+        0 , 0 , 0 , 1 , 0,
     };
 
     matiter(C, *warshall);