func_code_string: #include <bits/stdc++.h>   using namespace std;   const int maxn = 1000020;   const int maxm = 1000020;   const int MOd = 998244353;   void solve() {     string s;     cin >> s;     int c = 0, c1 = 0;     for (int i = 0; i < s.size(); i++) {       if (s[i] ==  0 ) {         if (!c)           printf( 1 1 n );         else           printf( 3 1 n );         c ^= 1;       } else {         if (!c1)           printf( 4 3 n );         else           printf( 4 1 n );         c1 ^= 1;       }     }   }   int main() {     int n = 1;     while (n--) solve();     return 0;   }   