func_code_string: #include <bits/stdc++.h>   using namespace std;   int main() {     int n;     cin >> n;     int ans = 1;     for (int i = 6; i <= n; i++) {       if (n % i == 0) {         int k1 = 0, k0 = 0;         int f = 0;         int x = i;         while (x > 1 and f == 0) {           int x2 = x % 2;           if (x2 == 1 and k0 > 0)             k1++;           else if (x2 == 0 and k1 == 0)             k0++;           else             f = 1;           x /= 2;         }         if (k1 - k0 == 0 and f == 0) ans = i;       }     }     cout << ans;     return 0;   }   