mod = 998244353


def main():
    import sys
    input = sys.stdin.readline

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

    ans = 1
    for i in range(31):
        seen = [0, 0]
        for a in A:
            seen[a >> i & 1] = 1
        if seen[0] == seen[1] == 1:
            ans = (ans * 2) % mod
    print(ans)


if __name__ == '__main__':
    main()