#include<stdio.h>
main()
{
	int a,b,c,d,t;
	scanf("%d%d%d%d",&a,&b,&c,&d);
	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;
	}
	printf("%d %d %d %d",a,b,c,d);
}
/**************************************************************
	Problem: 1705
	User: admin
	Language: C
	Result: Accepted
	Time:8 ms
	Memory:1144 kb
****************************************************************/