/* -*- coding: utf-8 -*-
 *
 * 2812.cc:  No.2812 Plus Minus Blackboard - yukicoder
 */

#include<cstdio>
#include<set>
#include<algorithm>

using namespace std;

/* constant */

const int MAX_N = 200000;

/* typedef */

using ll = long long;
using msl = multiset<ll>;

/* global variables */

int as[MAX_N];

/* subroutines */

/* main */

int main() {
  int n;
  scanf("%d", &n);
  for (int i = 0; i < n; i++) scanf("%d", as + i);

  msl pv, mv;
  for (int i = 0; i < n; i++) {
    if (as[i] > 0) pv.insert(as[i]);
    else if (as[i] < 0) mv.insert(-as[i]);
  }

  while (! pv.empty() && ! mv.empty()) {
    ll u = *pv.begin(); pv.erase(pv.begin());
    ll v = *mv.begin(); mv.erase(mv.begin());
    ll d = u - v;

    if (d > 0) pv.insert(d);
    else if (d < 0) mv.insert(-d);
  }

  if (pv.size() + mv.size() <= 1) puts("Yes");
  else puts("No");
  
  return 0;
}