#include<stdio.h>
long long int a[1000000];
int main()
{
	long long int n,m,i,mid;
	long long int b;
	scanf("%lld%lld",&n,&m);
	for(i=0;i<n;i++)
	  scanf("%lld",&a[i]);
	 while(m--)
	 {
	   mid=n/2;
	 	scanf("%lld",&b);
	 		while(a[mid]>=b)
			  {
			  	mid--;
			  }  
              while(a[mid]<b)
			   {
			     	mid++;
			     }
	 if(a[mid]==b) 
		   	printf("%lld ",mid+1);
	     else
		    printf("-1 ");		
	 }return 0;
}