#include <iostream>
#include <vector>
#include <unordered_map>
#include <cmath>
#include <bits/stdc++.h>
using namespace std;
#define int long long

vector<int> Divisors(int N) {
    vector<int> divisors;
    for (int i = 1; i <= N; i++) {
        if (i * i >= N) {
            break;
        } else if (N % i == 0) {
            divisors.push_back(i);
        }
    }
    int i = sqrt(N);
    if (i * i == N) {
        divisors.push_back(i);
        for (int j = divisors.size() - 1; j >= 0; j--) {
            divisors.push_back(N / divisors[j]);
        }
    } else {
        for (int j = divisors.size() - 1; j >= 0; j--) {
            divisors.push_back(N / divisors[j]);
        }
    }
    return divisors;
}

signed main() {
    ios_base::sync_with_stdio(false);
    cin.tie(NULL);
    int N, M, K;
    cin >> N >> M >> K;
    string op;
    cin >> op;
    vector<int> B(M);
    for (int m = 0; m < M; m++) {
        cin >> B[m];
    }
    vector<int> A(N);
    for (int n = 0; n < N; n++) {
        cin >> A[n];
    }
    long long ans;
    if (op == "+") {
        unordered_map<int, int> cnt;
        for (int b : B) {
            cnt[b % K]++;
        }
        ans = 0;
        for (int a : A) {
            ans += cnt[((-a) % K+K)%K];
        }
        cout << ans << endl;
    } else {
        unordered_map<int, int> cnt;
        vector<int> D = Divisors(K);
        for (int b : B) {
            for (int d : D) {
                if (b % d == 0) {
                    cnt[d]++;
                }
            }
        }
        ans = 0;
        for (int a : A) {
            int g = __gcd(a, K);
            ans += cnt[K / g];
        }
        cout << ans << endl;
    }
    return 0;
}