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

#define ll long long
#define rep(i, n) for (int i = 0; i < (n); i++)
#define P pair<int, int>

int main() {
  int n;
  cin >> n;
  vector<int> a(n);
  ll sum = 0;
  rep(i,n) {
    cin >> a[i];
    sum += a[i];
  }
  if (sum%n == 0) cout << "Yes" << endl;
  else cout << "No" << endl;


}