/* -*- coding: utf-8 -*-
 *
 * 1219.cc:  No.1219 Mancala Combo - yukicoder
 */

#include<cstdio>
#include<cstdlib>
#include<cstring>
#include<cmath>
#include<iostream>
#include<string>
#include<vector>
#include<map>
#include<set>
#include<stack>
#include<list>
#include<queue>
#include<deque>
#include<algorithm>
#include<numeric>
#include<utility>
#include<complex>
#include<functional>
 
using namespace std;

/* constant */

const int MAX_N = 200000;

/* typedef */

typedef long long ll;

/* global variables */

int as[MAX_N + 1];

/* subroutines */

/* main */

int main() {
  int n;
  scanf("%d", &n);
  for (int i = 1; i <= n; i++) scanf("%d", as + i);

  ll sum = 0;
  for (int i = n; i >= 1; i--) {
    if ((sum + as[i]) % i != 0) {
      puts("No");
      return 0;
    }
    sum += (sum + as[i]) / i;
  }

  puts("Yes");
  return 0;
}