func_code_string: #include <bits/stdc++.h>   using namespace std;   signed main() {     ios_base::sync_with_stdio(0), cin.tie(0), cout.tie(0);     string s;     cin >> s;     long long i = 0;     while (i + 1 < s.size() && s[i] == s[i + 1]) {       if (s[i] ==  0 ) {         cout << 3 <<     << 1 <<   n ;         cout << 1 <<     << 1 <<   n ;       } else {         cout << 1 <<     << 1 <<   n ;         cout << 1 <<     << 3 <<   n ;       }       i += 2;     }     bool r = 0, c = 0;     while (i < s.size()) {       if (s[i] ==  0 ) {         if (r) {           cout << 1 <<     << 1 <<   n ;           r = 0;         } else {           cout << 3 <<     << 1 <<   n ;           r = 1;         }       } else {         if (c) {           cout << 1 <<     << 1 <<   n ;           c = 0;         } else {           cout << 1 <<     << 3 <<   n ;           c = 1;         }       }       i++;     }     return 0;   }   