#define _USE_MATH_DEFINES #include using namespace std; //template #define rep(i,a,b) for(int i=(a);i<(b);i++) #define rrep(i,a,b) for(int i=(a);i>(b);i--) #define ALL(v) (v).begin(),(v).end() typedef long long int ll; const int inf = 0x3fffffff; const ll INF = 0x1fffffffffffffff; const double eps=1e-12; void tostr(ll x,string& res){while(x)res+=('0'+(x%10)),x/=10; reverse(ALL(res)); return;} template inline bool chmax(T& a,T b){ if(a inline bool chmin(T& a,T b){ if(a>b){a=b;return 1;}return 0; } //template end int main(){ int n,m,k; scanf("%d%d%d",&n,&m,&k); char c; cin>>c; vector a(n),b(m); rep(i,0,m)scanf("%d",&b[i]); rep(i,0,n)scanf("%d",&a[i]); ll res=0; if(c=='+'){ map mp; rep(i,0,m)mp[b[i]%k]++; rep(i,0,n)res+=mp[(k-a[i]%k)%k]; } else{ map cnta,cntb; rep(i,0,m)cntb[__gcd(b[i],k)]++; rep(i,0,n)cnta[__gcd(a[i],k)]++; for(auto p:cnta)for(auto q:cntb)if(p.first*q.first%k==0)res+=1LL*p.second*q.second; } printf("%lld\n",res); return 0; }