/**
 *   @FileName	a.cpp
 *   @Author	kanpurin
 *   @Created	2021.07.09 20:16:24
**/

#include "bits/stdc++.h" 
using namespace std; 
typedef long long ll;

int main() {
    int n;cin >> n;
    ll total = 0;
    for (int i = 0; i < n; i++) {
        int a;cin >> a;
        total += a;
    }
    if (total % n == 0) {
        puts("Yes");
    }
    else {
        puts("No");
    }
    return 0;
}