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

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