#include <bits/stdc++.h>

using namespace std;
typedef long long ll;
typedef pair<ll, ll> p_ll;

template<class T>
void debug(T itr1, T itr2) { auto now = itr1; while(now<itr2) { cout << *now << " "; now++; } cout << endl; }
#define repr(i,from,to) for (ll i=(ll)from; i<(ll)to; i++)
#define all(vec) vec.begin(), vec.end()
#define rep(i,N) repr(i,0,N)
#define per(i,N) for (int i=(int)N-1; i>=0; i--)

const ll MOD = pow(10,9)+7;
const ll LLINF = pow(2,61)-1;
const int INF = pow(2,30)-1;

vector<ll> fac;
void c_fac(int x=pow(10,6)+10) { fac.resize(x,true); rep(i,x) fac[i] = i ? (fac[i-1]*i)%MOD : 1; }
ll modpow(ll x, ll p) { ll result = 1, now = 1, pm = x; while (now<=p) { if (p&now) { result = result * pm % MOD; } now*=2; pm = pm*pm % MOD; } return result; }
ll inv(ll a, ll m=MOD) { ll b = m, x = 1, y = 0; while (b!=0) { int d = a/b; a -= b*d; swap(a,b); x -= y*d; swap(x,y); } return (x+m)%m; }
ll nck(ll n, ll k) { return fac[n]*inv(fac[k]*fac[n-k]%MOD)%MOD; }
ll gcd(ll a, ll b) { if (a<b) swap(a,b); return b==0 ? a : gcd(b, a%b); }
ll lcm(ll a, ll b) { return a/gcd(a,b)*b; }


int main() {
  ll N, M, K; cin >> N >> M >> K;
  ll a[N]; rep(i,N) cin >> a[i];
  ll b[M]; rep(i,M) cin >> b[i];

  ll xa[1<<10] = {}; xa[0] = 1;
  ll na = 0; rep(i,N) { na ^= a[i]; xa[na]++; }
  ll xnu[1<<10] = {};
  rep(i,1<<10) repr(j,i,1<<10) {
    if (i==j) xnu[0] = (xnu[0] + xa[i]*(xa[i]-1)/2) % MOD;
    else xnu[i^j] = (xnu[i^j] + xa[i]*xa[j]) % MOD;
  }
  ll xb[1<<10] = {}; xb[0] = 1;
  ll nb = 0; rep(i,M) { nb ^= b[i]; xb[nb]++; }
  ll xlr[1<<10] = {};
  rep(i,1<<10) repr(j,i,1<<10) {
    if (i==j) xlr[0] = (xlr[0] + xb[i]*(xb[i]-1)/2) % MOD;
    else xlr[i^j] = (xlr[i^j]+xb[i]*xb[j]) % MOD;
  }
  // debug(xnu,xnu+8); debug(xlr,xlr+8);

  ll result = 0;
  rep(i,1<<10) result = (result + xnu[i]*xlr[i^K]) % MOD;
  cout << result << endl;
  return 0;
}