import java.util.*;

public class Main {
	public static void main (String[] args) {
		Scanner in=new Scanner(System.in);
		int n=in.nextInt();
		int k=in.nextInt();
		int []a=new int[n];
		for(int i=0;i<n;i++){
			a[i]=in.nextInt();
		}	
		java.util.Arrays.sort(a);
		int c=0;
		for(int j=0;j<k;j++){
			c++;
			if(c%k==0)
				System.out.println (a[j]);
			else
				System.out.print (a[j]+" ");
		}
	}
}
/**************************************************************
	Problem: 2223
	User: admin
	Language: Java
	Result: Accepted
	Time:4981 ms
	Memory:51852 kb
****************************************************************/