mod = 1000000007
eps = 10**-9


def main():
    import sys
    input = sys.stdin.readline

    N, M, K = map(int, input().split())
    A = list(map(int, input().split()))
    B = list(map(int, input().split()))

    cs_A = [0] * (N+1)
    cs_B = [0] * (M+1)
    for i in range(N):
        cs_A[i+1] = cs_A[i] ^ A[i]
    for i in range(M):
        cs_B[i+1] = cs_B[i] ^ B[i]
    cnt_A = [0] * 1024
    cnt_B = [0] * 1024
    for i in range(N+1):
        cnt_A[cs_A[i]] += 1
    for i in range(M+1):
        cnt_B[cs_B[i]] += 1
    cnt_xor_A = [0] * 1024
    cnt_xor_B = [0] * 1024
    for u in range(1024):
        for v in range(u+1, 1024):
            k = u^v
            cnt_xor_A[k] = (cnt_xor_A[k] + cnt_A[u] * cnt_A[v])%mod
            cnt_xor_B[k] = (cnt_xor_B[k] + cnt_B[u] * cnt_B[v])%mod
    for u in range(1024):
        cnt_xor_A[0] = (cnt_xor_A[0] + cnt_A[u] * (cnt_A[u] - 1) // 2)%mod
        cnt_xor_B[0] = (cnt_xor_B[0] + cnt_B[u] * (cnt_B[u] - 1) // 2) % mod

    ans = 0
    for u in range(1024):
        v = u ^ K
        ans = (ans + cnt_xor_A[u] * cnt_xor_B[v])%mod
    print(ans)


if __name__ == '__main__':
    main()