func_code_string: #include <bits/stdc++.h>   using namespace std;   int main() {     ios_base::sync_with_stdio(0);     cin.tie(0);     int n, m, x, y, i, j, k, l;     cin >> n >> m >> x >> y;     cout << x <<     << y <<   n ;     for (i = 1; i <= m; i++)       if (i != y) cout << x <<     << i <<   n ;     int c;     for (i = 1, j = m; i <= n; i++)       if (i != x)         for (k = 1; k <= m; k++) {           cout << i <<     << j <<   n ;           if (j == m)             c = -1;           else if (j == 1)             c = 1;           if (k != m) j += c;         }     return 0;   }   