#include <bits/stdc++.h>

using namespace std;

int main() {
  ios::sync_with_stdio(false);
  cin.tie(nullptr);
  int n, m, k;
  cin >> n >> m >> k;
  char op;
  cin >> op;
  map<int, int> mp1, mp2;
  for (int i = 0; i < m; ++i) {
    int b;
    cin >> b;
    if (op == '*') ++mp1[__gcd(b, k)];
    else ++mp1[b % k];
  }
  for (int i = 0; i < n; ++i) {
    int a;
    cin >> a;
    if (op == '*') ++mp2[__gcd(a, k)];
    else ++mp2[a % k];
  }
  long long ans = 0;
  for (auto itr1 : mp1) {
    for (auto itr2 : mp2) {
      if (op == '+') {
        if ((itr1.first + itr2.first) % k == 0) ans += 1LL * itr1.second * itr2.second;
      }
      else {
        if (1LL * itr1.first * itr2.first % k == 0) ans += 1LL * itr1.second * itr2.second;
      }
    }
  }
  cout << ans << '\n';
  return 0;
}