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

int main()
{
	ecci::List list;

	long double value = 0.0L;
	while ( std::cin >> value )
		list.add( value );

	size_t count = 0;
	for ( ecci::List::Iterator itr = list.begin(); itr != list.end(); itr++ )
		std::cout << ++count << ":" << *itr << std::endl;
}