using System;

public class Program

{

    public static void Main()

    {

        try

        {

            int valueOne = int.Parse(Console.ReadLine());

            int valueTwo = int.Parse(Console.ReadLine());

            int result= valueOne/valueTwo;

            Console.WriteLine("{0}/{1}:{2}",valueOne,valueTwo/valueTwo);

        }

        catch(DivideByZeroException ex)

        {

            Console.Write(ex.Message);

        }

        //Console.WriteLine("Hello World");

    }

}