#include<stdio.h>
int main()
{
	int n;
	scanf("%d", &n);
	int i, j, k;
	int e[16];
	for (i = 0; i < n; i++)
		scanf("%d", &e[i]);
	int p[3];
	int max = 1;
	for (i = 0; i < n; i++, max *= 3);
	for (k = 0; k < max; k++)
	{
		for (i = 0; i < 3; i++)
			p[i] = 0;
		for (j = k, i = 0; i < n; i++, j /= 3)
			p[j % 3] += e[i];
		if (p[0] == p[1] && p[1] == p[2])
		{
			printf("Yes\n");
			return 0;
		}
	}
	printf("No\n");
	return 0;
}