func_code_string: #include <bits/stdc++.h>   int main(int argc, char *argv[]) {     std::string s;     std::cin >> s;     int yes = 0;     int len = s.length();     if (len < 3) {       std::cout <<  No ;       return 0;     }     for (int i = 0; i < len - 2; i++) {       std::string ss = s.substr(i, 3);       if (ss ==  ABC  || ss ==  ACB  || ss ==  BAC  || ss ==  BCA  ||           ss ==  CAB  || ss ==  CBA ) {         yes = 1;         break;       }     }     if (yes) {       std::cout <<  Yes ;     } else {       std::cout <<  No ;     }   }   