func_code_string: #include <bits/stdc++.h>   using namespace std;   long long n, m, i, x, ans;   int main() {     cin >> n >> m;     x = 1;     for (i = 1; i <= m; i++) x = x * 2 % 1000000009;     ans = 1;     for (i = 1; i <= n; i++) ans = ans * (x - i) % 1000000009;     cout << ans;     return 0;   }   