#include<iostream>
#include<vector>

using namespace std;

int main( void )
{
    long long N;
    cin >> N;
    long long A;
    long long sum = 0;
    for( int i = 0; i < N; i++ )
    {
        cin >> A;
        sum += A;
    }
    if( sum % N == 0 )
    {
        cout << "Yes" << endl;
    }
    else
    {
        cout << "No" << endl;
    }

    return 0;
}