#include <bits/stdc++.h>
using namespace std;
const long long MOD = 1000000007;
int main(){
  int N, M, K;
  cin >> N >> M >> K;
  vector<int> a(N);
  for (int i = 0; i < N; i++){
    cin >> a[i];
  }
  vector<int> b(M);
  for (int i = 0; i < M; i++){
    cin >> b[i];
  }
  vector<int> sa(N + 1);
  sa[0] = 0;
  for (int i = 0; i < N; i++){
    sa[i + 1] = sa[i] ^ a[i];
  }
  vector<int> sb(M + 1);
  sb[0] = 0;
  for (int i = 0; i < M; i++){
    sb[i + 1] = sb[i] ^ b[i];
  }
  vector<int> cnt1(1024, 0);
  vector<long long> cnt2(1024, 0);
  for (int i = 0; i <= N; i++){
    for (int j = 0; j < 1024; j++){
      cnt2[j ^ sa[i]] += cnt1[j];
      cnt2[j ^ sa[i]] %= MOD;
    }
    cnt1[sa[i]]++;
  }
  vector<int> cnt3(1024, 0);
  vector<long long> cnt4(1024, 0);
  for (int i = 0; i <= M; i++){
    for (int j = 0; j < 1024; j++){
      cnt4[j ^ sb[i]] += cnt3[j];
      cnt4[j ^ sb[i]] %= MOD;
    }
    cnt3[sb[i]]++;
  }
  long long ans = 0;
  for (int i = 0; i < 1024; i++){
    ans += cnt2[i] * cnt4[i ^ K] % MOD;
    ans %= MOD;
  }
  cout << ans << endl;
}