#include <bits/stdc++.h>
using namespace std;
#define int long long
signed main(){
  int N;
  cin>>N;
  int sum = 0;
  for(int i=0;i<N;i++){
      int a;
      cin>>a;
      sum += a;
  }
  if(sum%N == 0) cout<<"Yes"<<endl;
  else cout<<"No"<<endl;
}