func_code_string: #include <bits/stdc++.h>   using namespace std;   const long long INF = 1e18;   int main() {     ios_base::sync_with_stdio(0);     long long cnt1, cnt2, cnt3, cnt4;     cin >> cnt1 >> cnt2 >> cnt3 >> cnt4;     cnt3 = (cnt3 != 0 ? 1 : 0);     cnt1 -= cnt3;     cnt4 -= cnt3;     if (cnt1 >= 0 && cnt4 >= 0 && cnt1 == cnt4) {       cout << 1;     } else       cout << 0;     return 0;   }   