#include <bits/stdc++.h>

using namespace std;

using ll = long long;
using ul = unsigned long;
using ull = unsigned long long;

template <class T>
T gcd(T a, T b)
{
	return b == 0 ? a : gcd(b, a % b);
}

int main()
{
	ios::sync_with_stdio(false);
	cin.tie(nullptr);

	ll n, m, k;
	cin >> n >> m >> k;
	string op;
	cin >> op;

	vector<ll> b(m);
	for (auto&& it : b)
		cin >> it;

	ll res{ 0 };
	if (op == "+")
	{
		map<ll, ll> mb;
		for (auto&& it : b)
			++mb[it % k];
		for (int i = 0; i < n; ++i)
		{
			ll a;
			cin >> a;
			ll mod = -a % k;
			if (mod < 0)
				mod += k;
			if (mb.count(mod))
				res += mb[mod];
		}
	}
	else
	{
		map<ll, ll> gcdb, gcda;
		for (auto&& it : b)
			++gcdb[gcd(it, k)];

		for (int i = 0; i < n; ++i)
		{
			ll a;
			cin >> a;
			++gcda[gcd(a, k)];
		}

		for (const auto& itb : gcdb)
			for (const auto& ita : gcda)
				if ((ita.first * itb.first) % k == 0)
					res += ita.second * itb.second;
	}

	cout << res << "\n";

	return 0;
}