func_code_string: #include <bits/stdc++.h>   using namespace std;   int main() {     string s;     cin >> s;     int n = s.length();     int a[n + 2][3];     for (int i = 0; i < n + 1; i++)       for (int j = 0; j < 3; j++) a[i][j] = 0;     for (int k = 0; k < s.length(); k++) {       if (s[k] ==  . )         continue;       else if (s[k] ==  A ) {         a[k][1] = 1;         a[k + 1][1] = 1;         a[k + 2][1] = 1;       } else if (s[k] ==  B ) {         a[k][0] = 1;         a[k + 1][0] = 1;         a[k + 2][0] = 1;       } else {         a[k][2] = 1;         a[k + 1][2] = 1;         a[k + 2][2] = 1;       }     }     for (int l = 1; l <= n; l++) {       if (a[l][0] == 1 && a[l][1] == 1 && a[l][2] == 1) {         cout <<  YES ;         return 0;       }     }     cout <<  NO ;     return 0;   }   