2 for (int c1
= 1; c1
<= n
; c1
+= 1)
3 for (int c2
= 1; c2
<= m
; c2
+= 1) {
7 for (int c1
= 1; c1
<= n
; c1
+= 1) {
11 for (int c1
= 1; c1
<= m
; c1
+= 1) {
12 for (int c3
= 1; c3
<= n
; c3
+= 1) {
16 for (int c3
= 1; c3
<= n
; c3
+= 1) {
21 for (int c1
= 1; c1
<= m
; c1
+= 1) {