prints 9 times when I is 0 and K is 0 I is 0 and K is 1 I is 0 and K is 2 I is 0 and K is 3 I is 0 and K is 4 I is 1 and K is 1 I is 1 and K is 2 I is 1 and K is 3 I is 2 and K is 2