#include <bits/stdc++.h>
using namespace std;
typedef long long ll;
#define pb push_back
#define fi first
#define se second
typedef pair<ll, ll> P;
using VP = vector<P>;
using VVP = vector<VP>;
using VI = vector<ll>;
using VVI = vector<VI>;
using VVVI = vector<VVI>;
const int inf = 1e9 + 7;
const ll INF = 1LL << 61;
const ll mod = 1e9 + 7;

template <class T> inline bool chmax(T &a, T b) {
    if (a < b) {
        a = b;
        return true;
    }
    return false;
}

template <class T> inline bool chmin(T &a, T b) {
    if (a > b) {
        a = b;
        return true;
    }
    return false;
}

int main() {
    ios::sync_with_stdio(false);
    cin.tie(nullptr);
    int i, j;
    int n, n2, k;
    cin >> n >> n2 >> k;
    int a[n], b[n2];
    for (i = 0; i < n; i++) cin >> a[i];
    for (i = 0; i < n2; i++) cin >> b[i];
    int m = 1024;
    VI cnta(m, 0), cntb(m, 0);
    int p = 0;
    cnta[p]++;
    for (i = 0; i < n; i++) {
        p ^= a[i];
        cnta[p]++;
    }
    p = 0;
    cntb[p]++;
    for (i = 0; i < n2; i++) {
        p ^= b[i];
        cntb[p]++;
    }
    VI va(m, 0), vb(m, 0);
    for (i = 0; i < m; i++) {
        // if (cnta[i] > 0) cout << i << " " << cnta[i] << endl;
        for (j = i; j < m; j++) {
            if (i == j)
                va[i ^ j] += cnta[i] * (cnta[i] - 1) / 2;
            else {
                va[i ^ j] += cnta[i] * cnta[j];
                va[i ^ j] %= mod;
            }
        }
    }
    for (i = 0; i < m; i++) {
        // if (va[i] > 0) cout << i << " " << va[i] << endl;
    }
    for (i = 0; i < m; i++) {
        for (j = i; j < m; j++) {
            if (i == j)
                vb[i ^ j] += cntb[i] * (cntb[i] - 1) / 2;
            else {
                vb[i ^ j] += cntb[i] * cntb[j];
                vb[i ^ j] %= mod;
            }
        }
    }
    ll ans = 0;
    for (i = 0; i < m; i++) {
        ans += va[i] * vb[k ^ i];
        ans %= mod;
    }
    cout << ans << endl;
}