#include<bits/stdc++.h>
using namespace std;
int main(){
	freopen("killer.in","r",stdin);
	freopen("killer.out","w",stdout);
	long long a[101],b[101],n,m,r,aa=0,b1[101]={0},tot=0;
	cin>>n>>m>>r;
	for(int i=1;i<=n;i++)cin>>a[i]; 
	for(int i=1;i<=m;i++){
	cin>>b[i];
	for(int j=1;j<=n;j++){
		if(b[i]%a[j]==0)b1[i]++;
	}
	if(b1[i]==n){
	cout<<i<<" ";
	return 0;
}
}
if(aa==0)for(int i=1;i<=m;i++)if(b1[i]>=r){
tot++;
cout<<i<<" ";
}
if(tot==0)cout<<"0";
return 0;
}