2 for (int c0
= a
; c0
<= min(a
+ 9, b
); c0
+= 1)
4 for (int c0
= a
+ 10; c0
<= min(a
+ 19, b
); c0
+= 1) {
8 for (int c0
= max(a
+ 10, b
+ 1); c0
<= min(a
+ 19, b
+ 10); c0
+= 1)
10 for (int c0
= a
+ 20; c0
<= b
; c0
+= 1) {
15 for (int c0
= max(a
+ 20, b
+ 1); c0
<= b
+ 10; c0
+= 1) {
19 for (int c0
= max(a
+ 20, b
+ 11); c0
<= b
+ 20; c0
+= 1)