#include <bits/stdc++.h>
#define rep(i, l, r) for (int i = (l); i < (r); i++)
using namespace std;

typedef long long ll;

int main() {
    ll N, A, S = 0;
    cin >> N;
    rep(i, 0, N) {
        cin >> A;
        S += A;
    }
    if (S % N == 0) {
        cout << "Yes" << endl;
    } else {
        cout << "No" << endl;
    }
}