func_code_string: #include <bits/stdc++.h>   using namespace std;   int n;   string s[6], S;   bool F;   int main() {     cin >> S;     for (int i = 1; i <= 5; ++i) cin >> s[i];     for (int i = 1; i <= 5; ++i)       if (s[i][0] == S[0] || s[i][1] == S[1]) F = 1;     puts(F ?  YES  :  NO );     return 0;   }   