def sol1(A):
    a=A[:]
    n=len(a)
    a.sort()
    ans=1
    block=[(0,n-1)]
    for j in range(65,-1,-1):
        res=1
        new=[]
        for l,r in block:
            if (a[l]>>j)&1==(a[r]>>j)&1:
                new.append((l,r))
                continue
            mid=-1
            for i in range(l,r):
                if (a[i]>>j)&1<(a[i+1]>>j)&1:
                    mid=i
                    break
            res=2
            new.append((l,mid))
            new.append((mid+1,r))
        ans*=res
        block=new[:]
    return ans

n=int(input())
a=list(map(int,input().split()))
print(sol1(a))