#include <bits/stdc++.h>
#define rep(i,n) for(int i = 0; i < (n); i++)
using namespace std;
typedef long long ll;

int main(){
    cin.tie(0);
    ios::sync_with_stdio(0);
    
    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];

    ll ans = 0;
    if(op == '+') {
        map<ll,ll> mpB;
        rep(i,M) mpB[B[i] % K]++;
        rep(i,N) ans += mpB[(K - A[i] % K) % K];
    } else {
        map<ll,ll> mpA, mpB;
        rep(i,N) mpA[gcd(A[i], K)]++;
        rep(i,M) mpB[gcd(B[i], K)]++;
        for(auto [a, ca] : mpA) for(auto [b, cb] : mpB) {
            if((a * b) % K == 0) {
                ans += ca * cb;
            }
        }
    }
    cout << ans << endl;
}