#include <iostream>
#include <string>
#include <cstdlib>
#include <cmath>
#include <vector>
#include <unordered_map>
#include <map>
#include <set>
#include <algorithm>
#include <queue>
#include <stack>
#include <functional>
#include <bitset>
#include <assert.h>
#include <unordered_map>
#include <fstream>
#include <time.h>
using namespace std;
typedef long long ll;
typedef vector<ll> vl;
typedef vector<vl> vvl;
typedef vector<char> vc;
typedef vector<string> vs;
typedef vector<bool> vb;
typedef vector<double> vd;
typedef pair<ll,ll> P;
typedef pair<int,int> pii;
typedef vector<P> vpl;
typedef tuple<ll,ll,ll> tapu;
#define rep(i,n) for(int i=0; i<(n); i++)
#define REP(i,a,b) for(int i=(a); i<(b); i++)
#define all(x) (x).begin(), (x).end()
#define rall(x) (x).rbegin(), (x).rend()
const int inf = 1<<30;
const ll linf = 1LL<<62;
const int MAX = 5020000;
ll dy[8] = {1,-1,0,0,1,-1,1,-1};
ll dx[8] = {0,0,1,-1,1,-1,-1,1};
const double pi = acos(-1);
const double eps = 1e-7;
template<typename T1,typename T2> inline bool chmin(T1 &a,T2 b){
	if(a>b){
		a = b; return true;
	}
	else return false;
}
template<typename T1,typename T2> inline bool chmax(T1 &a,T2 b){
	if(a<b){
		a = b; return true;
	}
	else return false;
}
template<typename T> inline void print(T &a){
    rep(i,a.size()) cout << a[i] << " ";
    cout << "\n";
}
template<typename T1,typename T2> inline void print2(T1 a, T2 b){cout << a << " " << b << "\n";}
template<typename T1,typename T2,typename T3> inline void print3(T1 a, T2 b, T3 c){
	cout << a << " " << b << " " << c << "\n";
}
const int mod = 1e9 + 7;
//const int mod = 998244353;

ll cnt[2][1<<10];
ll cnt2[2][1<<10];

int main(){
	ll n,m,k; cin >> n >> m >> k;
	vl a(n), b(m);
	rep(i,n) cin >> a[i];
	rep(i,m) cin >> b[i];
	vl A(n+1,0);
	vl cnta(1<<10,0);
	rep(i,n) A[i+1] = A[i] ^ a[i], cnta[A[i]]++;
	ll t = A[n];
	for(int i=n-1; i>=0; i--){
		rep(j,1<<10){
			cnt[0][j^t] += cnta[j];
			//cnt[0][j^t] %= mod;
		}
		t ^= a[i];
		cnta[A[i]]--;
	}
	vl B(m+1,0);
	vl cntb(1<<10,0);
	rep(i,m) B[i+1] = B[i] ^ b[i], cntb[B[i]]++;
	t = B[m];
	for(int i=m-1; i>=0; i--){
		rep(j,1<<10){
			cnt[1][j^t] += cntb[j];
			//cnt[1][j^t] %= mod;
		}
		t ^= b[i];
		cntb[B[i]]--;
	}
	ll ans = 0;
	rep(i,1<<10){
		ans += cnt[0][i] * cnt[1][k ^ i] % mod;
		ans %= mod;
	}
	cout << ans << "\n";
}