#include <iostream>
#include <algorithm>
#include <map>
#include <set>
#include <queue>
#include <stack>
#include <numeric>
#include <bitset>
#include <cmath>

static const int MOD = 1000000007;
using ll = long long;
using u32 = unsigned;
using u64 = unsigned long long;
using namespace std;

template<class T> constexpr T INF = ::numeric_limits<T>::max()/32*15+208;

int main() {
    int n, m, k;
    cin >> n >> m >> k;
    vector<int> A(n+1), B(m+1);
    for (int i = 0; i < n; ++i) {
        cin >> A[i+1];
        A[i+1] ^= A[i];
    }
    for (int i = 0; i < m; ++i) {
        cin >> B[i+1];
        B[i+1] ^= B[i];
    }
    vector<ll> cnt(1024), dnt(1024);
    for (auto &&l : A) cnt[l]++;
    for (auto &&l : B) dnt[l]++;
    vector<ll> S(1024), T(1024);
    for (int i = 0; i < 1024; ++i) {
        for (int j = i; j < 1024; ++j) {
            if(i != j){
                S[i^j] += cnt[i]*cnt[j];
                T[i^j] += dnt[i]*dnt[j];
            }else {
                S[0] += cnt[i]*(cnt[i]-1)/2;
                T[0] += dnt[i]*(dnt[i]-1)/2;
            }
        }
    }
    ll ans = 0;
    for (int i = 0; i < 1024; ++i) {
        (ans += S[i]*T[i^k]) %= MOD;
    }
    cout << ans%MOD << "\n";
    return 0;
}