#include <bits/stdc++.h>
using namespace std;
#define rep(i,n) for(int i = 0; i < (int)n; i++)
using ll = long long;

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