#include <iostream>
#include <cstdio>
#include <cstring>
#include <vector>
#include <deque>
#include <queue>
#include <array>
#include <set>
#include <map>
#include <cmath>
#include <complex>
#include <algorithm>
#include <numeric>
#include <utility>
#include <tuple>
#include <bitset>
#include <cstdint>
#include <cassert>
#include <random>
#include <iterator>

using namespace std;
using i64 = int64_t;
using i32 = int32_t;

i64 gcd(i64 x, i64 y) {
    while (y > 0) {
        x %= y;
        swap(x, y);
    }
    return x;
}

int main() {
    i64 n, m, k;
    char op;
    cin >> n >> m >> k >> op;
    vector<i64> a(n), b(m);
    for (int i = 0; i < m; ++i) cin >> b[i];
    for (int i = 0; i < n; ++i) cin >> a[i];

    i64 ans = 0;
    if (op == '+') {
        map<i64, i64> ma, mb;
        for (i64 x : a) ma[x % k]++;
        for (i64 x : b) mb[x % k]++;
        for (auto p : ma) {
            i64 x, c;
            tie(x, c) = p;
            ans += c * mb[(k - x) % k];
        }
    } else {
        map<i64, i64> ma, mb;
        for (i64 x : a) ma[gcd(x, k)]++;
        for (i64 x : b) mb[gcd(x, k)]++;
        for (auto p : ma) {
            i64 x, c;
            tie(x, c) = p;
            for (auto p : mb) {
                i64 y, d;
                tie(y, d) = p;
                if (x * y % k == 0) {
                    ans += c * d;
                }
            }
        }
    }
    cout << ans << endl;
    return 0;
}