func_code_string: #include <bits/stdc++.h>   using namespace std;   int gcd(int a, int b) { return b == 0 ? a : gcd(b, a % b); }   int power(int a, int b, int p) {     int ans = 1 % p;     for (; b; b >>= 1) {       if (b & 1) ans = (long long)ans * a % p;       a = (long long)a * a % p;     }     return ans;   }   int a, b, c, d;   int main() {     scanf( %d%d%d%d , &a, &b, &c, &d);     if (a == d && (a != 0 || c == 0))       printf( 1 n );     else       printf( 0 n );     return 0;   }   