import java.util.Scanner;
   public class Main
{
   public static void main(String[] args){
		Scanner sc = new Scanner(System.in);
		int a = sc.nextInt();
		int b = sc.nextInt();
		int c = sc.nextInt();
		int d = sc.nextInt();
		int t;
		if (a<b){
		   t=a;
		   a=b;
		   b=t;
        }
		if (a<c){
		   t=a;
		   a=c;
		   c=t;
        }
		if (a<d){
		   t=a;
		   a=d;
		   d=t;
        }
		if (b<c){
		   t=b;
		   b=c;
		   c=t;
        }
		if (b<d){
		   t=b;
		   b=d;
		   d=t;
        }
		if (c<d){
		   t=c;
		   c=d;
		   d=t;
        }
		
			System.out.println(a+" "+b+" "+c+" "+d);
	}
}

/**************************************************************
	Problem: 1705
	User: admin
	Language: Java
	Result: Accepted
	Time:1094 ms
	Memory:42584 kb
****************************************************************/