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
    D[0] = 1
    tmp = 0
    for j in range(NM[i]):
        tmp ^= A[j]
        D[tmp] += 1
    #print(D)
    D2 = [0] * AM
    for j in range(AM):
        D2[0] += D[j] * (D[j] - 1) // 2
        D2[0] %= MOD
        for k in range(j+1, AM):
            D2[j^k] += D[j] * D[k]
            D2[j^k] %= MOD

    D4.append(D2)
#print(D4)
ans = 0
for i in range(AM):
    ans += D4[0][i] * D4[1][i ^ K]
    ans %= MOD
print(ans)