//
// Conversion between kilometer and mile
//	1 mile = 1.609344 kilo

import java.util.Scanner;
class ConvKM
{
	public static void main(String[] args)
	{
		Scanner input = new Scanner(System.in);
		double value, result;
		boolean go = true;
		String ans;

		while(go)
		{
			System.out.print("Input k or m? ");
			String comm = input.next();	// "k" or "m"
			if(comm.equalsIgnoreCase("k"))
			{
				System.out.println("kilo --> mile");
				System.out.print("Input value in kilo: ");
				value = input.nextDouble();	// kilo value
				result = value / 1.609344;		// mile
				System.out.println("Value in mile = " + result);
			}
			else
			{
				System.out.println("mile --> kilo");
				System.out.print("Input value in mile: ");
				value = input.nextDouble();	// mile value
				result = value * 1.609344;		// kilo
				System.out.println("Value in kilo = " + result);
			}
			// propmt to ask to continue or not
			System.out.print("Quit? (y/n)? ");
			ans = input.next();
			if(ans.equalsIgnoreCase("y"))	go = false;
		}

		System.out.println("\n\ndone.\n\n");
	}
}