#include <bits/stdc++.h>
#define rep(i,n) for(int i = 0; i < (n); ++i)
#define srep(i,s,t) for (int i = s; i < t; ++i)
#define drep(i,n) for(int i = (n)-1; i >= 0; --i)
using namespace std;
typedef long long int ll;
typedef pair<int,int> P;
#define yn {puts("YES");}else{puts("NO");}
#define MAX_N 200005

int main() {
    int n, m, k;
    cin >> n >> m >> k;
    int a[n], b[m];
    rep(i,n)cin >> a[i];
    rep(i,m)cin >> b[i];
    ll cnta[1024] = {};
    ll cntb[1024] = {};
    ll fa[1024] = {};
    ll fb[1024] = {};
    ll MOD = 1000000007;
    int now = 0;
    rep(i,n){
        now ^= a[i];
        cnta[now]++;
        rep(j,1024){
            cnta[j^now] += fa[j];
            cnta[j^now] %= MOD;
        }
        fa[now]++;
    }
    now = 0;
    rep(i,m){
        now ^= b[i];
        cntb[now]++;
        rep(j,1024){
            cntb[j^now] += fb[j];
            cntb[j^now] %= MOD;
        }
        fb[now]++;
    }

    /*
    rep(i,10) cout << cnta[i] << ' ';
    cout << endl;
    */

    ll ans = 0;
    rep(i,1024){
        rep(j,1024){
            if((i^j) == k){
                ans += cnta[i] * cntb[j];
                ans %= MOD;
            }
        }
    }

    cout << ans << endl;
    return 0;
}