#include <bits/stdc++.h>
using namespace std;

int main()
{
	int N;
	cin >> N;
	long long s = 0;
	for( int i = 0; i < N; i++ ) {
		int A;
		cin >> A;
		s += A;
	}

	string ans = "No";
	if( s % N == 0 ) ans = "Yes";

	cout << ans << endl;
}