#include<iostream>
#include<string>
#include<vector>
#include<algorithm>
#include<bitset>
#include<set>
#include<map>
#include<stack>
#include<queue>
#include<deque>
#include<list>
#include<iomanip>
#include<cmath>
#include<cstring>
#include<functional>
#include<cstdio>
#include<cstdlib>
using namespace std;

#define repr(i, a, b) for (int i = (int)(a); i < (int)(b); i++)
#define rep(i, n) repr(i, 0, n)
#define INF 2e9
#define MOD 1000000007
//#define MOD 998244353
#define LINF (long long)4e18
#define jck 3.141592

const double EPS = 1e-10;

using ll = long long;
using Pi = pair<int,int>;
using Pl = pair<ll,ll>;


int main(){
    int n,m,k; cin >> n >> m >> k;
    vector<int> a(n),b(m);
    rep(i,n) cin >> a[i];
    rep(i,m) cin >> b[i];
    vector<int> suma(n+1),sumb(m+1);
    rep(i,n) suma[i+1] = suma[i]^a[i];
    rep(i,m) sumb[i+1] = sumb[i]^b[i];
    vector<int> cnta(1<<10),cntb(1<<10);
    rep(i,n+1) cnta[suma[i]]++;
    rep(i,m+1) cntb[sumb[i]]++;
    vector<ll> cnta2(1<<10),cntb2(1<<10);
    rep(i,1<<10)repr(j,i,1<<10){
        if(i == j){
            cnta2[i^j] += cnta[i]*(cnta[j]-1)/2;
            cntb2[i^j] += cntb[i]*(cntb[j]-1)/2;
        }
        else{
            cnta2[i^j] += cnta[i]*cnta[j];
            cntb2[i^j] += cntb[i]*cntb[j];
        }
        cnta2[i^j] %= MOD;
        cntb2[i^j] %= MOD;
    }
    ll ans = 0;
    rep(i,1<<10){
        ans += cnta2[i]*cntb2[i^k]%MOD;
        ans %= MOD;
    }
    cout << ans << endl;
}