func_code_string: #include <bits/stdc++.h>   using namespace std;   int main(int argc, char const *argv[]) {     int bags[4];     int flag = 0;     for (int i = 0; i < 4; i++) {       cin >> bags[i];     }     if (bags[0] + bags[1] == bags[2] + bags[3]) {       cout <<  YES n ;     } else if (bags[0] + bags[2] == bags[1] + bags[3]) {       cout <<  YES n ;     } else if (bags[0] + bags[3] == bags[1] + bags[2]) {       cout <<  YES n ;     } else if (bags[0] + bags[1] + bags[2] == bags[3] ||                bags[0] + bags[2] + bags[3] == bags[1] ||                bags[0] + bags[1] + bags[3] == bags[2] ||                bags[3] + bags[1] + bags[2] == bags[0]) {       cout <<  YES n ;     } else {       cout <<  NO n ;     }     return 0;   }   