func_code_string: #include <bits/stdc++.h>   char s[200001];   char pick(char a, char b) {     char c;     for (c =  a ; c == a || c == b; c++)       ;     return c;   }   char *handle(char *s) {     char *ps = s;     for (s += 1; *s; s++) {       if (*s == *(s - 1)) *s = pick(*(s - 1), *(s + 1));     }     return ps;   }   int main() {     scanf( %s , s);     printf( %s n , handle(s));     return 0;   }   