int main ()
{
	int n;
	scanf ("%d",&n);
	int i,r = 0,t = n,a,tmp;
	do 
	{
		t=(int)(t/10);
		r++;
	}while (t>0);
	for (i=0;i<r;i++)
	{
		t = n/(int)pow(10,i);
		a = t%10;
		printf ("%d",a);
	}
	return 0;
}