#include <bits/stdc++.h>
#include <atcoder/all>
using namespace std;
using namespace atcoder;
using ll = long long;
using ld = long double;

ll l, n;
string s[10];

int main() {
  cin >> l >> n;
  for (int i = 0; i < n; i++) cin >> s[i];
  cout << (1 << (l - 3)) * n << endl;
  return 0;
}