func_code_string: #include <bits/stdc++.h>   using namespace std;   int main() {     long long b, r, g, w, i, j = 0, p = 0, n, m, s1, s2;     cin >> n >> m >> s1 >> s2;     if (s2 == 2) {       cout << s1 <<     << s2 << endl;       cout <<  1             <<     << s2 << endl;       for (i = 1; i <= n; i++) {         if (i % 2 == 1) {           for (j = 1; j <= m; j++) {             if ((i == 1 && j == 2) || (i == s1 && j == 2)) {               continue;             } else               cout << i <<     << j << endl;           }         } else {           for (j = m; j >= 1; j--) {             if ((i == 1 && j == 2) || (i == s1 && j == 2)) {               continue;             } else               cout << i <<     << j << endl;           }         }       }     } else {       cout << s1 <<     << s2 << endl;       cout << s1 <<                <<  2  << endl;       cout <<  1             <<                <<  2  << endl;       for (i = 1; i <= n; i++) {         if (i % 2 == 1) {           for (j = 1; j <= m; j++) {             if ((i == 1 && j == 2) || (i == s1 && j == s2) ||                 (i == s1 && j == 2)) {               continue;             } else               cout << i <<     << j << endl;           }         } else {           for (j = m; j >= 1; j--) {             if ((i == 1 && j == 2) || (i == s1 && j == s2) ||                 (i == s1 && j == 2)) {               continue;             } else               cout << i <<     << j << endl;           }         }       }     }     return 0;   }   