1

#include <iostream>
using namespace std;
int asd(int a, int c)
{
	for (int i = 0; a > 0; i++)
	{
		c = (a % 10) + (10*c);
		a /= 10;
	}
	return c;
}
int main()
{
	int a, c = 0;
	cin >> a;
	cout << asd(a, c);
}