#include <bits/stdc++.h>
using namespace std;
#define rep(i,l,r) for(int i=(l);i<(r);++i)
typedef long long ll;

int main(){
	int n; cin>>n;
	vector<int> a(n);
	rep(i,0,n) cin>>a[i];
	int av=accumulate(a.begin(),a.end(),0)/n;
	int p=0, m=0;
	rep(i,0,n){
		if(a[i]-av>0) p+=a[i]-av;
		else m+=a[i]-av;
	}
	if(p+m==0) cout<<"Yes"<<endl;
	else cout<<"No"<<endl;
}