func_code_string: #include <bits/stdc++.h>   using namespace std;   const int N = 2e5 + 5;   char s[200];   int main() {     int T;     scanf( %d , &T);     for (int t = 1; t <= T; t++) {       bool num = 0, xx = 0, dx = 0;       vector<int> res;       scanf( %s , s + 1);       int len = strlen(s + 1);       for (int i = 1; i <= len; i++) {         if (isdigit(s[i])) {           if (!num)             num = 1;           else             res.push_back(i);         }         if (isalpha(s[i])) {           if (s[i] == tolower(s[i])) {             if (!xx)               xx = 1;             else               res.push_back(i);           } else {             if (!dx)               dx = 1;             else               res.push_back(i);           }         }       }       int cnt = 1;       if (num == 0) s[res.back()] =  1 , res.pop_back();       if (xx == 0) s[res.back()] =  a , res.pop_back();       if (dx == 0) s[res.back()] =  A , res.pop_back();       printf( %s n , s + 1);     }   }   