#include "BinarySearchTree.h"
#include <iostream>

int main()
{
	ecci::BinarySearchTree<long double> tree;
	long double value = 0.0L;

	while ( std::cin >> value )
		tree.insert(value);

	for ( ecci::BinarySearchTree<long double>::Iterator itr = tree.begin(); itr != tree.end(); ++itr )
		std::cout << *itr << std::endl;
}