#include<iostream>
using namespace std;
typedef long long ll;
const int N = 1e5+10;
ll sum;
int a[N];
int main()
{
    ios::sync_with_stdio(false);
    cout.tie(0);
    int n;
    cin>>n;
    for(int i = 0;i<n;i++)
    {
        cin>>a[i];
        sum+=a[i];
    }
    if(sum%n == 0)cout<<"Yes"<<endl;
    else cout<<"No"<<endl;
    
    return 0;
}