func_code_string: #include <bits/stdc++.h>   using namespace std;   const int inf = 0x3f3f3f3f, maxn = 100007, mod = 1e9 + 7;   const long long linf = 0x3f3f3f3f3f3f3f3fLL;   const long long P = 19260817;   string str;   string s;   bool flag;   int main() {     cin >> str;     for (int i = 1; i <= 5; i++) {       cin >> s;       if (s[0] == str[0] || s[1] == str[1]) flag = true;     }     if (flag) {       printf( YES );     } else {       printf( NO );     }     return 0;   }   