#include<bits/stdc++.h>
using namespace std;
using LL = long long;
using ULL = unsigned long long;
#define rep(i,n) for(int i=0; i<(n); i++)

int main() {
    int N; cin >> N;
    LL A[200000]; rep(i, N) cin >> A[i];

    bool ok = true;
    LL ad = 0;
    for (int i = N - 1; i >= 0; i--) {
        if ((A[i] + ad) % (i + 1) != 0) ok = false;
        ad += (A[i] + ad) / (i + 1);
    }

    cout << (ok ? "Yes" : "No") << endl;

	return 0;
}