#include <iostream>
#include <algorithm>
using namespace std;

int main()
{
    ios::sync_with_stdio(false);
    cin.tie(0);
    int n; cin >> n;
    long long s = 0;
    for (int i = 0; i < n; i++) {
        int a; cin >> a;
        s += a;
    }
    if (s % n == 0) cout << "Yes" << '\n';
    else cout << "No" << '\n';
    return 0;
}