#include <iostream>

using namespace std;

bool hasSum(int* array, int n)
{
	int m = 0;
	while(m != n)
	{
		if(array[m] == array[n] - array[m++])
		{
			return true;
		}
	}
	return false;
}

int main()
{
	int n, m;
	while(cin >> n)
	{
		int* array = new int[n+1];
		m = 0;
		for(int i = 0; i < n+1; i++)
		{
			array[i] = 0;
		}
		while(m != n)
		{
			cin >> array[m++];
			array[n] += array[m-1];
		}
		if(hasSum(array,n))
		{
			cout << "YES" << endl;
			delete[] array;
			continue;
		}
		cout << "NO" << endl;
		delete[] array;
	}
	return 0;
}