func_code_string: #include <bits/stdc++.h>   using namespace std;   int main() {     long long t;     cin >> t;     while (t--) {       long long n;       string x;       cin >> n >> x;       string a(n,  0 ), b(n,  0 );       for (long long i = 0; i < n; ++i) {         if (x[i] ==  1 ) {           a[i] =  1 ;           b[i] =  0 ;           for (int j = i + 1; j < n; ++j) {             b[j] = x[j];           }           break;         } else {           a[i] = b[i] =  0  + (x[i] -  0 ) / 2;         }       }       cout << a << endl << b << endl;     }   }   