# include <iostream>
using namespace std;
long long a[100001+10],b[100001+10];
int main () {
	int c,d;
	cin>>c>>d;
	for (int i=0;i<c;i++)
		cin>>a[i];

	for (int i=0;i<d;i++)
		cin>>b[i];

	for (int i=0;i<d;i++)
	{
		int lf=0,rg=c-1,mid,s=0,f=0;
		while (rg>=lf)
		{
			mid=(rg+lf)/2;
			if (a[mid]==b[i])
			{
				s=1;
				f=mid;
				break;
			}
			if (a[mid]>b[i]) rg=mid-1;
			else lf=mid+1;
		}
		if (s==1) {cout<<"YES"<<endl; continue;}
		if (a[rg]==b[i] || a[lf]==b[i]) cout<<"YES";
			else cout<<"NO"<<endl;
	}
	return 0;
}