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):
        flg = 0
        A_new = []
        for AA in A:
            seen = [0, 0]
            a0 = []
            a1 = []
            for a in AA:
                seen[a >> i & 1] = 1
                if a >> i & 1:
                    a1.append(a)
                else:
                    a0.append(a)
            if seen[0] * seen[1]:
                flg = 1
            if a0:
                A_new.append(a0)
            if a1:
                A_new.append(a1)
        if flg:
            ans = (ans * 2) % mod
        A = A_new
    print(ans)


if __name__ == '__main__':
    main()