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

P = 998244353

ans = 0
for i in range(18):
    a = 0
    b = 0
    mask = 1 << i
    for j in A:
        if mask & j:a += 1
    for j in B:
        if mask & j:b += 1
    tmp = 0
    for j in range(1,N + 1):
        t = pow(X,j - 1,P) * a * pow(X - a,N - j,P) % P * pow(Y,j - 1,P) * pow(b,N - j + 1,P) % P
        tmp += t
        tmp %= P
    ans += tmp * mask % P
print(ans % P)