#include <iostream>
#include <cmath>
#include <fstream>

const char input[] = "input.txt";
const char output[] = "o.txt";


using namespace std;

void funk(int n);

int main()
{
	int n;

	ifstream fd(input);

	fd >> n;

	fd.close();

	funk(n);

	return 0;
}

ofstream fr(output);

void funk(int n)
{
	int numb = 0;

	if (n > 0) {
		if (n >= 10) {
			fr << n % 10 << endl;

			numb = n / 10;

			funk(numb);
		}
		else {
			fr << n << endl;
		}
	}
}