#include<iostream>
using namespace std;
int a[1000001];
int main()
{
	int n,d;
	cin>>n>>d;
	
	for(int i=1;i<=n;i++)
	{
		cin>>a[i];
	}
	int b;
	int i=1,l=n;
	int m=(i+l)/2;
	for(int sum=1;sum<=d;sum++)
	{
		cin>>b;
	i=1;
	l=n;
	m=(i+l)/2;
	bool c=true;
	if(b>a[n])
	{
		cout<<"-1";
	 } 
	 else
	 {
	while(i<=l)
	{
		if(b==a[m])
		{
			int h=m;
			while(b==a[h-1]&&h-1>=1)
			{
				h--;
			}
			cout<<h<<" ";
			c=false;
			break;
		}
		else
		{
			if(b<a[m])
			{
				l=m-1;
				m=(i+l)/2;
			}
			else if(b>a[m])
			{
				i=m+1;
				m=(i+l)/2;
			}
		}
	}
	if(c)
	cout<<"-1 ";
	}
	}
	return 0;
 }