func_code_string: #include <bits/stdc++.h>   using namespace std;   const int MOD = 1e9 + 7;   int main() {     cin.tie(0), cout.tie(0);     ios::sync_with_stdio(false);     int t;     cin >> t;     while (t--) {       int u = 0, l = 0, d = 0;       string s;       cin >> s;       for (int i = 0; i < s.size(); i++) {         if (s[i] >=  a  && s[i] <=  z ) {           l++;         }         if (s[i] >=  A  && s[i] <=  Z ) {           u++;         }         if (s[i] >=  0  && s[i] <=  9 ) {           d++;         }       }       for (int i = 0; i < s.size(); i++) {         if (s[i] >=  a  && s[i] <=  z  && l > 1) {           if (!u) {             s[i] =  A ;             u++;           } else if (!d) {             s[i] =  0 ;             d++;           }         } else if (s[i] >=  A  && s[i] <=  Z  && u > 1) {           if (!l) {             s[i] =  a ;             l++;           } else if (!d) {             s[i] =  0 ;             d++;           }         } else if (s[i] >=  0  && s[i] <=  9  && d > 1) {           if (!l) {             s[i] =  a ;             l++;           } else if (!u) {             s[i] =  A ;             u++;           }         }       }       cout << s << endl;     }   }   