#include <stdio.h>

// Function prototypes
int dividable(int n);

int main(void)
{
	// Initialize variables and get input
	int n, sum = 0;
	scanf("%d", &n);

	for (int i = 1; i < n; i++) {
		if (dividable(i)) {
			sum += i;
		}
	}

	printf("%d\n", sum * sum);

	return 0;
}

int dividable(int n) {
	return (n % 3 == 0 && n % 7 == 0) ? 1 : 0;
}