#include <iostream>

int main() {
	int N;
	std::cin >> N;

	char* S = new char[N];

	for (int i = 0; i < N; i++) {
		std::cin >> S[i];
	}

	for (int i = 0; i < N; i++) {
		std::cout << S[i];
	}

	return 0;
}