func_code_string: #include <bits/stdc++.h>   int main() {     char a[100010];     scanf( %s , a);     long long i = 0, x = 1;     while (a[i] !=   0 ) {       if (a[i] ==  0 ) {         a[i] =  2 ;         x = 0;         break;       }       i++;     }     if (x) {       a[0] =  2 ;     }     i = 0;     while (a[i] !=   0 ) {       if (a[i] !=  2 ) printf( %c , a[i]);       i++;     }     printf(  n );     return (0);   }   