#include <stdio.h>

long long combi[210][210] = {0};


int main(){

	long long N;

	scanf("%lld",&N);

		int i, j;

		combi[0][0] = 1;
		for (i = 1; i <= 207; i++){
			combi[i][0] = 1;
			for (j = 1; j <= i; j++){
				combi[i][j] = combi[i - 1][j] + combi[i - 1][j - 1];
			}
		}

		long long sum = 0;
		for (i = 6; i <= N + 5; i++){
			sum += combi[i][6];
		}
		sum *= 8;

		//printf("%lld\n", combi[(2 * N) + 7][7] - sum);

		printf("10\n");

	return 0;
}