n, m, k = map(int, input().split())
A = list(map(int, input().split()))
B = list(map(int, input().split()))

mod = 10**9+7

def func(A):
    n = len(A)
    cnt = [0]*(1<<10)
    total = 0
    cnt[0] = 1
    for a in A:
        total ^= a
        cnt[total] += 1
    res = [0]*(1<<10)
    for i in range(1<<10):
        for j in range(i+1, 1<<10):
            res[i^j] += cnt[i]*cnt[j]
    for i in range(1<<10):
        res[i^i] += cnt[i]*(cnt[i]-1)//2
    return res

CA = func(A)
CB = func(B)
ans = 0
for a in range(1<<10):
    for b in range(1<<10):
        if a^b == k:
            ans += CA[a]*CB[b]
            ans %= mod
print(ans)