#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;
    for (int i = 1; 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());
    map<int, int> index;
    for (int i = 0; i < (int)divisor.size(); i++) {
      index[divisor[i]] = i;
    }
    vector<int64_t> C(2000, 0), D(2000, 0);
    for (const auto& e : A) {
      if (index.find(gcd(e, K)) != index.end()) C[index[gcd(e, K)]]++;
    }
    for (const auto& e : B) {
      if (index.find(gcd(e, K)) != index.end()) D[index[gcd(e, K)]]++;
    }
    int64_t res = 0;
    for (int i = 0; i < (int)divisor.size(); i++) {
      for (int j = 0; j < (int)divisor.size(); j++) {
        if ((divisor[i] * divisor[j]) % K == 0) res += C[i] * D[j];
      }
    }
    cout << res << '\n';
  }
  return 0;
}