func_code_string: #include <bits/stdc++.h>   using namespace std;   const double PI = 2 * acos(0.0);   void solve(void) {     string str;     cin >> str;     int one = 0, zero = 0;     for (int i = 0; i < str.length(); i++) {       if (str[i] ==  1 ) {         one++;         while (i < str.length() && str[i] ==  1 ) i++;         i--;       } else {         zero++;         while (i < str.length() && str[i] ==  0 ) i++;         i--;       }     }     if (one && zero) {       if (zero <= 1)         cout << 1 <<   n ;       else         cout << 2 <<   n ;     } else if (zero)       cout << 1 <<   n ;     else if (one)       cout << 0 <<   n ;   }   int main(void) {     ios::sync_with_stdio(0), cin.tie(0);     int t;     cin >> t;     while (t--) {       solve();     }     return 0;   }   