N=int(input())
ans=1
A=set()
I=tuple(set([int(x) for x in input().split()]))
A.add(I)
mod=998244353
for i in reversed(range(30)):
	B=set()
	flag=False
	for La in A:
		u=set()
		v=set()
		for a in La:
			if (a>>i)&1:
				u.add(a)
			else:
				v.add(a)
		if len(u)>=1 and len(v)>=1:
			flag=True
		if len(u)>=2:
			B.add(tuple(u))
		if len(v)>=2:
			B.add(tuple(v))
	if flag:
		ans*=2
		ans%=mod
	A=B.copy()
print(ans)