N = int(input())
A = list(map(int,input().split()))
P = 998244353

count = 0

l = [A]
for i in range(29,-1,-1):
    mask = 1 << i
    nx = []
    flag = False
    for ll in l:
        left = []
        right = []
        for u in ll:
            if u & mask == 0:
                left.append(u)
            else:
                right.append(u)
        if len(left) == 0 or len(right) == 0:
            pass
        else:
            flag = True
        if len(left):
            nx.append(left)
        if len(right):
            nx.append(right)
    if flag:
        count += 1
    l = nx
print(pow(2,count,P))