#include<stdio.h>
long long int r[200005];
int main()
{
	long long int n, x, y;
	scanf("%lld %lld %lld", &n, &x, &y);
	long long int i;
	for (i = 0; i < n; i++)
		scanf("%lld", &r[i]);
	long long int sum = 0;
	for (i = 0; i < n; i++)
		sum += r[i];
	sum *= 2;
	long long int min = r[0];
	for (i = 0; i < n; i++)
		if (min > r[i])
			min = r[i];
	sum -= min;
	long long int d = x * x + y * y;
	if (d % sum == 0)
	{
		if (d / sum <= sum)
			printf("Yes\n");
		else
			printf("No\n");
	}
	else
	{
		if (d / sum >= sum)
			printf("No\n");
		else
			printf("Yes\n");
	}
	return 0;
}