#include <stdio.h>
#include <string>
#include <cstring>
#include <stdlib.h>
#include <math.h>
#include <algorithm>
#include <vector>
#include <set>
#include <map>
#include <queue>
#include <stack>
#include <list>
#include <iterator>
#include <assert.h>
#pragma warning(disable:4996) 
 
typedef long long ll;
#define MIN(a, b) ((a)>(b)? (b): (a))
#define MAX(a, b) ((a)<(b)? (b): (a))
#define LINF 9223300000000000000
#define INF 2140000000
ll MOD;
//const long long MOD = 1000000007;
//const long long MOD = 998244353;

using namespace std;

ll gcd(ll a, ll b) {
    if(b == 0) return a;
    return gcd(b,a%b);
}

char str[5];
void solve()
{
    int n,m,K;
    scanf("%d%d%d", &n, &m, &K);
    scanf("%s", str);
    int flag=(str[0]=='+'? 0: 1);
    vector<int> a(n),b(m);
    int i,j;
    for(i=0; i<m; i++) {
        scanf("%d", &b[i]);
    }
    for(i=0; i<n; i++) {
        scanf("%d", &a[i]);
    }

    if(flag==0) {
        map<int,pair<int,int> > z;
        for(i=0; i<n; i++) {
            z[a[i]%K].first++;
        }
        for(i=0; i<m; i++) {
            z[(K-(b[i]%K))%K].second++;
        }
        ll ans=0;
        auto it=z.begin();
        for(; it!=z.end(); ++it) {
            int a=it->second.first, b=it->second.second;
            ans+=(ll)a*b;
        }
        printf("%lld\n", ans);
    }
    else {
        map<int, int> mp0, mp1;
        for(i=0; i<n; i++) {
            int now=gcd(a[i],K);
            mp0[now]++;
        }

        for(i=0; i<m; i++) {
            int now=gcd(b[i],K);
            mp1[now]++;
        }

        ll ans=0;
        auto it0=mp0.begin();
        for(; it0!=mp0.end(); ++it0) {
            auto it1=mp1.begin();
            for(; it1!=mp1.end(); ++it1) {
                if(it0->first*it1->first%K==0) {
                    ans+=(ll)(it0->second) * (it1->second);
                }
            }
        }
        printf("%lld\n", ans);
    }

    return;
}

int main(int argc, char* argv[])
{
#if 1
    solve();
#else
    int T; scanf("%d", &T);
    while(T--) {
        solve();
    }
#endif
    return 0;
}