MOD = 10 ** 9 + 7
N, M, K = map(int, input().split())
ans = 0
AM = 1024
D4 = []

NM = [N, M]
for i in range(2):
    A = list(map(int, input().split()))
    D = [0] * AM
    D3 = [0] * AM

    tmp = 0
    for j in range(NM[i]):
        tmp ^= A[j]
        D[tmp] += 1
        D3[tmp] += 1

    for j in range(NM[i]):
        D2 = [0] * AM
        d = A[j]
        D[d] -= 1
        for k in range(AM):
            kd = k ^ d
            D2[kd] += D[k]
            D2[kd] %= MOD
            D3[kd] += D2[kd]
            D3[kd] %= MOD
        D = D2
    D4.append(D3)
ans = 0
for i in range(AM):
    ans += D4[0][i] * D4[1][i ^ K]
    ans %= MOD
print(ans)