#include <stdio.h>
	int main ()
{
	int n,m=1,sum=0;
	int i,j=0,k=0;
	int a[3]; 
	scanf ("%d",&n);
	
	for (i=0;i<3;i++)
	{
		a[i]=n%10;
		n/=10;
	}	
	
		for (i=0;i<3;i++)
	{	
		sum*=10;	
		sum+=a[i];
	}
		for (i=2;i>=0;i--)
	{
		sum*=10;
		sum+=a[i];
			
	}
	printf ("%d",sum);
	return 0;
}
/**************************************************************
	Problem: 1620
	User: admin
	Language: C
	Result: Accepted
	Time:10 ms
	Memory:1144 kb
****************************************************************/