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

int main()
{
  int64_t N;
  cin >> N;
  int64_t suma = 0;
  int64_t A;
  for(int i = 0; i < N; i++)
  {
    cin >> A;
    suma += A;
  }
  
  if(suma % N == 0) cout << "Yes" << endl;
  else cout << "No" << endl;
  return 0;
}