#include <bits/stdc++.h>
using namespace std;
int main(){
    int N;
    cin >> N;
    vector<long long> A(N);
    long long 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;
}