//#define _GLIBCXX_DEBUG
#include <bits/stdc++.h>
#define rep(i, n) for(int i=0; i<n; ++i)
#define all(v) v.begin(), v.end()
#define rall(v) v.rbegin(), v.rend()
using namespace std;
using ll = int64_t;
using ld = long double;
using P = pair<int, int>;
using vs = vector<string>;
using vi = vector<int>;
using vvi = vector<vi>;
template<class T> using PQ = priority_queue<T>;
template<class T> using PQG = priority_queue<T, vector<T>, greater<T> >;
const int INF = 100010001;
const ll LINF = (ll)INF*INF*10;
template<typename T1, typename T2>
inline bool chmax(T1 &a, T2 b) {return a < b && (a = b, true);}
template<typename T1, typename T2>
inline bool chmin(T1 &a, T2 b) {return a > b && (a = b, true);}
template<typename T1, typename T2>
istream &operator>>(istream &is, pair<T1, T2> &p) { return is >> p.first >> p.second;}
template<typename T1, typename T2>
ostream &operator<<(ostream &os, const pair<T1, T2> &p) { return os << p.first << ' ' << p.second;}

const int N = 2e5+10;
const int X = 1024;

//head

int n, m, k;
int a[N], b[N];
int suma[N+1], sumb[N+1];
int cnta[X], cntb[X];
ll jja[X], jjb[X];
ll ans;

int main() {
  ios::sync_with_stdio(false);
  cin.tie(0);
  cin >> n >> m >> k;
  rep(i, n) cin >> a[i];
  rep(i, m) cin >> b[i];

  rep(i, n) suma[i+1] = suma[i] ^ a[i];
  rep(i, m) sumb[i+1] = sumb[i] ^ b[i];

  rep(i, n+1) cnta[suma[i]]++;
  rep(i, m+1) cntb[sumb[i]]++;

  rep(i, X) rep(j, X) {
    if(i == j) {
      jja[0] += ll(cnta[i])*(cnta[i]-1);
    } else {
      jja[i^j] += ll(cnta[i])*cnta[j];
    }
  }

  rep(i, X) rep(j, X) {
    if(i == j) {
      jjb[0] += ll(cntb[i])*(cntb[i]-1);
    } else {
      jjb[i^j] += ll(cntb[i])*cntb[j];
    }
  }

  rep(i, X) {
    ans += jja[i] * jjb[i^k];
  }

  cout << ans/4 << endl;
}