#include<iostream>
#include<vector>
#include<string>
#include<cmath>

int main() {
	int simpleDNA_length, finish_num;

	std::cin >> simpleDNA_length >> finish_num;

	std::vector<std::string> codon(finish_num);
	for (int i = 0; i < finish_num; i++) {
		std::cin >> codon[i];
	}

	long long ans = pow(2LL, (simpleDNA_length - 3)) * finish_num;

	std::cout << ans << std::endl;

	return 0;
}