#include<bits/stdc++.h>
using namespace std;
#define fs first
#define sc second
#define pb push_back
#define mp make_pair
#define eb emplace_back
#define ALL(A) A.begin(),A.end()
#define RALL(A) A.rbegin(),A.rend()
typedef long long LL;
typedef pair<int,int> P;
template<class T> inline bool chmax(T& a, T b) { if (a < b) { a = b; return 1; } return 0; }
template<class T> inline bool chmin(T& a, T b) { if (a > b) { a = b; return 1; } return 0; }
template<typename T> T gcd(T a,T b){return b?gcd(b,a%b):a;}
const LL mod=1000000007;
const LL LINF=1LL<<62;
const int INF=1<<30;
int dx[]={1,0,-1,0,1,-1,1,-1};
int dy[]={0,1,0,-1,1,-1,-1,1};


int main(){
    int n,m,k;cin >> n >> m >> k;
    char op;cin >> op;
    vector<int> b(m),a(n);
    for (int i = 0; i < m; i++) {
        cin >> b[i];
        b[i] %= k;
    }
    for (int i = 0; i < n; i++) {
        cin >> a[i];
        a[i] %= k;
    }
    if(op == '+'){
        map<int,int> B;
        for (int i = 0; i < m; i++) {
            B[b[i]]++;
        }
        LL ans = 0;
        for (int i = 0; i < n; i++) {
            ans += B[(k - a[i])%k];
        }
        cout << ans << endl;
    }
    else{
        for (int i = 0; i < m; i++) {
            b[i] = gcd(k, b[i]);
            if(b[i] == k) b[i] = 0;
        }
        for (int i = 0; i < n; i++) {
            a[i] = gcd(k, a[i]);
            if(a[i] == k) a[i] = 0;
        }
        LL cntb = 0, cnta = 0;
        unordered_map<int,LL> B;
        unordered_map<int,LL> A;
        LL ans = 0;
        for (int i = 0; i < m; i++) {
            if(b[i] == 0) cntb++;
            else B[k / gcd(k,b[i])]++;
        }
        for (int i = 0; i < n; i++) {
            if(a[i] == 0) cnta++;
            else{
                A[a[i]]++;
            }
        }
        for(auto p : A){
            for(auto q : B){
                if(p.fs % q.fs == 0) ans += p.sc * q.sc;
            }
        }
        ans += cnta * (m - cntb) + cntb * (n - cnta) + cnta * cntb;
        cout << ans << endl;
    }
    return 0;
}