#include <stdio.h>
#include <stdlib.h>
#include <time.h>

int n;

int main()
{
	freopen("zebughil.in", "r", stdin);
	freopen("zebughil.out", "w", stdout);

	scanf("%d\n", &n);


	//n = rand() % n;
	printf("4\n");

	fclose(stdin);
	fclose(stdout);

	return 0;
}