#include <bits/stdc++.h>
#include <atcoder/all>
using namespace atcoder;
using namespace std;
using ll=long long;
using ld=long double;
ld pie=3.141592653589793;
ll mod=1000000007;
ll inf=1009999999999999990;
int main(){
    ll n;
    cin >> n;
    vector<ll>a(n);
    ll sum=0;
    ll mx=0;
    for (ll i = 0; i < n; i++)
    {
        cin >> a[i];
        sum+=a[i];
        mx=max(mx,a[i]);
    }
    if (sum%n==0)
    {
        if (mx<sum/n+n-1)
        {
            cout << "No" << endl;
            return 0;
        }
        cout << "Yes" << endl;
    }else{
        cout << "No" <<endl;
    }
    
}