#include <stdio.h>
#include <bits/stdc++.h>
#include <atcoder/all>
using namespace atcoder;
using mint = modint998244353;
using namespace std;
#define rep(i,n) for (int i = 0; i < (n); ++i)
#define Inf 1000000001
	
int N;
vector<long long> E;

void dfs(int cur,int a,int b,int c){
	if(cur==N){
		if(a==b&&b==c){
			cout<<"Yes"<<endl;
			exit(0);
		}
		return;
	}
	dfs(cur+1,a+E[cur],b,c);
	dfs(cur+1,a,b+E[cur],c);
	dfs(cur+1,a,b,c+E[cur]);
}

int main(){
	
	cin>>N;
	
	E.resize(N);
	rep(i,N)cin>>E[i];
	
	dfs(0,0,0,0);
	
	cout<<"No"<<endl;
	
	return 0;
}