#include <bits/stdc++.h>
using namespace std;
#define rep(i, n) for(int(i) = 0; (i) < (n); (i)++)
#define FOR(i, m, n) for(int(i) = (m); (i) < (n); (i)++)
#define All(v) (v).begin(), (v).end()
#define pb push_back
#define MP(a, b) make_pair((a), (b))
template <class T> vector<T> make_vec(size_t a, T val) {
    return vector<T>(a, val);
}
template <class... Ts> auto make_vec(size_t a, Ts... ts) {
    return vector<decltype(make_vec(ts...))>(a, make_vec(ts...));
}
using ll = long long;
using pii = pair<int, int>;
using pll = pair<ll, ll>;
using Graph = vector<vector<int>>;
template <typename T> struct edge {
    int to;
    T cost;
    edge(int t, T c) : to(t), cost(c) {}
};
template <typename T> using WGraph = vector<vector<edge<T>>>;
const int INF = 1 << 30;
const ll LINF = 1LL << 60;
const int MOD = 1e9 + 7;

int main() {
    ll N, M, K;
    cin >> N >> M >> K;
    char op;
    cin >> op;
    vector<ll> A(N), B(M);
    rep(i, M) cin >> B[i];
    rep(i, N) cin >> A[i];
    if(op == '+') {
        rep(i, N) A[i] %= K;
        rep(i, M) B[i] %= K;
        map<ll, ll> mp;
        rep(i, M) mp[B[i]]++;
        ll res = 0;
        for(int i = 0; i < N; i++) {
            res += mp[K - A[i]];
        }
        cout << res << endl;
    } else {
        map<ll, ll> mp1, mp2;
        for(int i = 0; i < M; i++) {
            mp1[__gcd(K, B[i])]++;
        }
        for(int i = 0; i < N; i++) {
            mp2[__gcd(K, A[i])]++;
        }
        ll res = 0;
        for(auto [y, d] : mp1) {
            auto g = K / y;
            for(auto [x, c] : mp2) {
                if(x % g == 0)
                    res += c * d;
            }
        }

        cout << res << endl;
    }
}