func_code_string: #include <bits/stdc++.h>   using namespace std;   void read_file(bool outToFile = true) {}   int main() {     read_file();     string a, b;     char str[1000000 + 1];     while (scanf( %s , str) != EOF) {       a = str;       scanf( %s , str);       b = str;       int n = a.length(), m = b.length();       if (n != m) {         printf( NO n );         continue;       }       if (n == 1) {         string ans = a == b ?  YES  :  NO ;         printf( %s n , ans.c_str());         continue;       }       bool aHasOne, bHasOne;       aHasOne = bHasOne = 0;       for (int i = 0; i < n; i++) {         if (a[i] ==  1 ) aHasOne = 1;         if (b[i] ==  1 ) bHasOne = 1;       }       string ans = aHasOne == bHasOne ?  YES  :  NO ;       printf( %s n , ans.c_str());     }   }   