#include<stdio.h>               
int main()  
{      
	int a,b,c,t;      
	scanf("%d %d %d",&a,&b,&c);      
	if(a>b)                            
	{          
		t=b;          
		b=a;        
		a=t;      
	}      
	if(a>c)                           
	{          
		t=c;          
		c=a;          
		a=t;     
	}      
	if(b>c)                             
	{          
		t=c;          
		c=b;          
		b=t;      
	}      
	printf("%d->%d->%d\n",a,b,c);      
	return 0;  
}