N, M = map(int, input().split())
A = list(map(int, input().split()))
B = list(map(int, input().split()))
mod = 998244353
for c in range(25):
    a, b = [], []
    for i in range(N):
        a.append( (A[i] >> c) & 1 )
    for j in range(M):
        b.append( (B[j] >> c) & 1 )
    b[0] ^= sum(a)%2
    if sum(b) % 2:
        print(0)
        exit()
        
ans = pow(2, (N - 1) * (M - 1) * 20, mod)
print(ans)