func_code_string: #include <bits/stdc++.h>   using namespace std;   int main() {     int n, x = 4, y = 5;     scanf( %d , &n);     if (n == 1 || n == 2) {       cout << 1;       return 0;     }     while (y < n) {       if (x & 1)         x = 2 * y, y = x + 1;       else         x = 2 * y - 1, y = x + 1;     }     printf( %d , (x == n || y == n));     return 0;   }   