func_code_string: #include <bits/stdc++.h>   #pragma comment(linker,  /STACK:16777216 )   using namespace std;   int n, a, b, c, ans = 0;   int main() {     cin >> n >> a >> b >> c;     for (int i = 0; i <= a; i += 2)       for (int j = 0; j < (int)(b + 1); j++) {         int k = n - (i * 0.5 + j);         if (k < 0) break;         if (!k) {           ans++;           continue;         }         if (k % 2 == 0) {           int l = k / 2;           if (l <= c) ans++;         }       }     cout << ans;     return 0;   }   