#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;
  vector<int64_t> A(N), B(M);
  for (auto&& e : B) {
    cin >> e;
  }
  for (auto&& e : A) {
    cin >> e;
  }
  if (op == '+') {
    map<int, int> mp;
    for (const auto& e : A) {
      mp[e % K]++;
    }
    int64_t res = 0;
    for (const auto& e : B) {
      res += mp[(2 * K - (e % K)) % K];
    }
    cout << res << '\n';
  } else {
    vector<int64_t> divisor;
    divisor.emplace_back(1);
    divisor.emplace_back(K);
    for (int i = 2; i * i < K + 1; i++) {
      if (K % i == 0) {
        divisor.emplace_back(i);
        if (i * i != K) divisor.emplace_back(K / i);
      }
    }
    sort(divisor.begin(), divisor.end());
    reverse(divisor.begin(), divisor.end());
    vector<int> cnt(divisor.size(), 0);
    for (const auto& e : A) {
      for (int i = 0; i < (int)divisor.size(); i++) {
        if (e % divisor[i] == 0) {
          cnt[i]++;
          break;
        }
      }
    }
    int64_t res = 0;
    for (const auto& e : B) {
      for (int i = 0; i < (int)divisor.size(); i++) {
        if ((e * divisor[i]) % K == 0) res += cnt[i];
      }
    }
    cout << res << '\n';
  }
  return 0;
}