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

typedef long long ll;

ll MOD = 998244353;

int main() {
    int N;
    cin >> N;
    vector<ll> A(N);
    rep(i, N) cin >> A[i];
    ll M = 0;
    for (int i = N; i > 0; i--) {
        A[i - 1] += M;
        if (A[i - 1] % i) {
            cout << "No\n";
            return 0;
        }
        M += A[i - 1] / i;
        //cout << "i=" << i << " M=" << M << "\n";
    }
    cout << "Yes\n";
}