func_code_string: #include <bits/stdc++.h>   using namespace std;   int main() {     string s;     int n;     cin >> s;     s +=  b ;     n = s.size();     for (int i = 0; i < n - 1; i++) {       if (s[i] != s[i + 1])         cout << 1 <<    ;       else         cout << 0 <<    ;     }   }   