#include <bits/extc++.h>

int main() {
  using namespace std;
  cin.tie(nullptr)->sync_with_stdio(false);
  int n;
  cin >> n;
  // 1-based
  vector<int64_t> a(n + 1);
  for (int i = 1; i <= n; ++i) cin >> a[i];

  int64_t sum = 0;
  for (int i = n; i; --i) {
    a[i] += sum;
    if (a[i] % i) {
      cout << "No\n";
      exit(0);
    }
    assert(a[i] % i == 0);
    auto q = a[i] / i;
    sum += q;
  }
  cout << "Yes\n";
}