/*
* Author  : ALi Bahrami Nezhad
* Email   : ali.bhz@gmail.com
*/

#include<iostream>
using namespace std;

int main()
{
	int number = 125;
	
	//cin >> number;
	
	while(number > 0)
	{
		cout << number % 10;
		number = number / 10;
	}
	
	return 1;
}

521