import java.util.Scanner;
import java.util.Arrays;
public class Main {
public static void main(String[] args) {
Scanner sc=new Scanner(System.in);
int n=sc.nextInt();
int m=sc.nextInt();
int[] array=new int[n];
int[] brray=new int[m];
int[] crray=new int[n+m];
int x=0;
while(sc.hasNext())
{
crray[x++]=sc.nextInt();
}
Arrays.sort(crray);
for(int i=0;i<x;i++)
{
System.out.print(crray[i]+" ");
}
}
}

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