#include <bits/stdc++.h>
using namespace std;
typedef long long ll;
#define inf 10e17
#define rep(i,n) for(long long i=0; i<n; i++)
#define repr(i,n,m) for(long long i=m; i<n; i++)
#define mod 1000000007
#define sorti(x) sort(x.begin(), x.end())
#define sortd(x) sort(x.begin(), x.end(), std::greater<long long>())
#define debug(x) std::cerr << (x) << std::endl;
#define roll(x) for (auto&& itr : x) { cerr << (itr) << " "; }

template <class T> inline void chmax(T &ans, T t) { if (t > ans) ans = t;}
template <class T> inline void chmin(T &ans, T t) { if (t < ans) ans = t;}
inline bool cel(ll t, ll m) {
  return (t % m) != 0;
}
int main() {
  ll n, m, k;
  cin >> n >> m >> k;
  string op;
  cin >> op;
  vector<ll> b(m), a(n);
  map<ll, ll> mp;
  rep(i, m) {
    cin >> b[i];
    b[i] %= k;
    mp[b[i]] += 1;
  }
  rep(i, n) {
    cin >> a[i];
    a[i] %= k;
  }

  ll ans = 0;
  for (auto itr : a) {
    if (itr == 0) {
      ans += b.size();
      continue;
    }
    if (op == "+") {
      auto p = k - itr;
      if (p < 0) {
        p = p + k;
      } 
      ans += mp[k - itr];
    } else {
      ans += mp[0];
      auto sd = k / itr;
      while (sd < k) {
        ans += mp[sd];
        sd *= 2;
      }
    }
  }

  cout << ans << endl;
}