func_code_string: #include <bits/stdc++.h>   using namespace std;   const int MOD = 1000000007;   const int INF = int(1e9);   const int MAX = 200;   int num[MAX], mixt[MAX];   int n;   bool substring(string &a, string &b) {     for (int i = 0; i < n; i++) {       bool found = true;       for (int j = 0; j < 3; j++) {         if (a[i + j] != b[j]) {           found = false;         }       }       if (found) {         return true;       }     }     return false;   }   int main() {     ios_base::sync_with_stdio(false);     string s;     cin >> s;     n = s.size();     string t =  ABC ;     do {       if (substring(s, t)) {         cout <<  Yes n ;         return 0;       }     } while (next_permutation(t.begin(), t.end()));     cout <<  No n ;     return 0;   }   