#include <bits/stdc++.h>
#include <ext/pb_ds/assoc_container.hpp>

#define f first
#define s second
#define pb push_back
#define all(v) (v).begin(), (v).end()
#define debug(v) cout << #v << ":\t" << v << endl
#define _ << " " <<

using namespace std;
using namespace __gnu_pbds;

typedef long long ll;
typedef long double ld;
typedef pair<ll, ll> pll; 

const ll N = 1e5 + 3;
const ll INF = 1e9 + 7;

ll n;
map<ll, ll> mp;

int main() {
	ios_base::sync_with_stdio(false); cin.tie(0); cout.tie(0);
//	freopen("in", "r", stdin);
	cout << "No";
	return 0;
	cin >> n;
	for (ll i = 1; i <= n; ++i) {
		ll x; cin >> x;
		++mp[x];
	}
	
	if (mp.size() == 1 && mp.count(0) > 0) {
		cout << "Yes";
		return 0;
	}
	
	if (mp.size() > 3) {
		cout << "No";
		return 0;
	}
	
	if (mp.size() < 2 || mp.size() > 3) {
		cout << "No";
		return 0;
	}
	
	if (mp.size() == 2) {
		if (mp[0] > 0) {
			for (auto& v: mp) if (v.f != 0) {
				cout << (v.s % 2 == 0 && mp[0] == v.s/2 ? "Yes" : "No");
			}
		}
		else cout << "No";
	}
	else {
		ll x;
		for (auto& v: mp) x = v.s;
		for (auto& v: mp) {
			if (v.s != x) {
				cout << "No";
				return 0;
			}
		}
		cout << "Yes";
	}
	
	return 0;
}
