int main()
{
	int i,a[6],n,m,q;//????a[6]???????100000???????????i???n????????m?q 
	int b=0;//??????b?????? 
	cin>>n;//?? 
	for(i=1; ; i++)//????break??????? 
	{
		m=n/10;//????n??n-1? 
		q=n-10*m;//????n????? 
		a[i]=q;//?????a[1] 
		n=m;//?n-1???n??? 
		b++;//???? 
		if(n==0)//?????? 
		break;
		
	}
	for(i=1;i<=b;i++)//???????b?????b?????? 
	cout<<a[i];
	cout<<endl;
	
	return 0;
}
	
