#include<bits/stdc++.h>
using namespace std;
#include <atcoder/all>
using namespace atcoder;
using mint=modint998244353; //1000000007;
using ll=long long;
using pp=pair<int,int>;
#define sr string 
#define vc vector
#define fi first
#define se second
#define rep(i,n) for(int i=0;i<(int)n;i++)
#define pb push_back
#define all(v) v.begin(),v.end()
#define pque priority_queue
#define bpc(a) __builtin_popcount(a)
int main(){
	int n;cin>>n;
	set<int>s;
	rep(i,n){
		int a;cin>>a;
		s.insert(a);
	}
	vc<int>v;
	for(auto au:s)v.pb(au);
	int t=30;
	vc<bool>bo(t,false);
	auto f=[&](auto f,int a,vc<int>x)->void{
		if(a==-1)return;
		vc<int>z,o;
		for(auto au:x){
			if(au>>a&1)o.pb(au);
			else z.pb(au);
		}
	    if(o.size()&&z.size())bo[a]=true;
	    if((int)z.size()>1)f(f,a-1,z); 
	    if((int)o.size()>1)f(f,a-1,o);
		return;
	};
	f(f,t-1,v);
	int k=0; rep(i,t)if(bo[i])k++;
	mint ans=mint(2).pow(k);
	cout<<ans.val();
}