N2 = 1 << 10
def f(X):
    ans = [0] * N2
    pre = [0] * N2
    dp = [0] * N2
    for i in range(len(X)):
        for j in range(N2):
            v = pre[j ^ X[i]]
            dp[j] = v
            ans[j] += v
        dp[X[i]] += 1
        ans[X[i]] += 1
        pre, dp = dp, pre
    return ans

N, M, K = map(int, input().split())
mod = 10 ** 9 + 7
A = list(map(int, input().split()))
B = list(map(int, input().split()))
DA, DB = f(A), f(B)
ans = 0
for i in range(N2):
    ans += DA[i] * DB[i^K]
    ans %= mod

print(ans)