Java :

import java.util.Scanner;


public class Main {

	/**
	 * @param args
	 */
	public static void main(String[] args) {
		// TODO Auto-generated method stub
		Scanner input=new Scanner(System.in);
		int n=input.nextInt();
		System.out.println("英里\t千米\t\t千米\t英里");
		for (int i=0; i<n; i++) {
			int j=i+1;
			int t=20+i*5;
			System.out.printf("%d\t%.3f\t\t%d\t%.3f\n",j,j*1.609,t,t/1.609);
		}

	}

}