#include <stdio.h>

int main() {
int a = 6// 6
int a++ // 7
int b = a++ + ++a // a =8, a= 9, b =9+7 = b =16
int c = b + a // 16 + 9 = 25
int c = c++ // 25+1
printf("%d", c)
return 0;
}