#include <bits/stdc++.h>
using namespace std;
int main() {
    long N,D,S=0;
    cin>>N;
    vector<long> A(N);
    for(int i=0;i<N;i++)cin>>A[i];
    for(long i=N-1;i>=0;i--){
        if((A[i]+S)%(i+1)!=0){
            cout<<"No"<<endl;
            return 0;
        }
        S+=(A[i]+S)/(i+1);
    }
    cout<<"Yes"<<endl;
}