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

using ll = long long;

int main() {
    int n;
    cin >> n;
    vector<ll> a(n);
    ll sum = 0;
    for (int i = 0; i < n; i++) {
        cin >> a[i];
        sum += a[i];
    }

    if (sum % n == 0) {
        cout << "Yes" << endl;
    } else {
        cout << "No" << endl;
    }
}