#include "bits/stdc++.h"
using namespace std;
#define int long long
#define REP(i,n) for(int i = 0;i < (int)(n);i++)
#define RREP(i,n) for(int i = (int)n-1;i >= 0;i--)
#define FOR(i,s,n) for(int i = s;i < (int)n;i++)
#define RFOR(i,s,n) for(int i = (int)n-1;i >= s;i--)
#define ALL(a) a.begin(),a.end()
#define IN(a, x, b) (a<=x && x<b)
template<class T>inline void out(T t){cout<<t<<"\n";}
template<class T,class... Ts>inline void out(T t,Ts... ts){cout<<t<<" ";out(ts...);}
template<class T>inline bool CHMAX(T&a,T b){if(a<b){a = b;return true;}return false;}
template<class T>inline bool CHMIN(T&a,T b){if(a>b){a = b;return true;}return false;}
constexpr long long INF = 1e18;

int gcd(int x,int y)
{
	if(x==0) return y;
	return gcd(y%x,x);
}
int lcm(int x, int y)
{
	return (x * y / gcd(x, y));
}

signed main(){
	int N,M,K;
	cin >> N >> M >> K;
	char c;
	cin >> c;
	vector<int>a(N),b(M);
	REP(i,M)cin >> b[i];
	REP(i,N)cin >> a[i];
	sort(ALL(a));
	sort(ALL(b));
	int ans = 0;
	if(c == '+'){
		map<int,int>mp;
		REP(i,N){
			++mp[a[i]%K];
		}
		map<int,int>used;
		REP(i,M){
			ans += mp[(K-b[i])%K];
		}
	}else{
		map<int,int>amp;
		map<int,int>bmp;
		REP(i,N)amp[gcd(a[i],K)]++;
		REP(i,M)bmp[gcd(b[i],K)]++;
		for(auto e:amp){
			for(auto ee:bmp){
				if(e.first*ee.first%K==0)ans+=e.second*ee.second;
			}
		}
	}
	out(ans);
}