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

int main() {
    int n;
    cin >> n;
    long long sum = 0;
    for(int i = 0; i < n; i++) {
        int a;
        cin >> a;
        sum += a;
    }
    cout << ((sum%n == 0)?"Yes":"No") << endl;
}