#include<bits/stdc++.h>
using namespace std;
typedef long long ll;
#define N 105
int n,m,r,a[N],b[N],ans[N],tot;
ll read(){
	ll w=0,f=1;
	char ch=getchar();
	while (ch>'9'||ch<'0'){
		if (ch=='-') f=-1;
		ch=getchar();
	}
	while (ch>='0'&&ch<='9'){
		w=(w<<3)+(w<<1)+(ch^48);
		ch=getchar();
	}
	return w*f;
}
int main(){
	freopen("killer.in","r",stdin);
	freopen("killer.out","w",stdout);
	n=read(),m=read(),r=read();
	for (int i=1;i<=n;i++) a[i]=read();
	for (int i=1;i<=m;i++) b[i]=read();
	for (int i=1;i<=m;i++){
		bool pd=0;
		for (int j=1;j<=n;j++){
			if (b[i]%a[j]!=0) pd=1;
		}
		if (!pd){
			printf("%d\n",i);
			return 0; 
		} 
	}
	for (int i=1;i<=m;i++){
		int cnt=0;
		for (int j=1;j<=n;j++){
			if (b[i]%a[j]==0) ++cnt;
		} 
		if (cnt>=r) ans[++tot]=i;
	}
	if (tot){
		for (int i=1;i<=tot;i++) printf("%d ",ans[i]);
	}else{
		puts("0");
	}
	return 0;
}