Java :

import java.util.Scanner;
public class Main {
	public static void main(String[] args) {
		Scanner a = new Scanner(System.in);
		int n = a.nextInt();
		System.out.println("千克\t磅\t\t磅\t千克");
		int kg = 1, bang = 20;
		while (kg <= n) {
			System.out.println(kg * 2 - 1 + "\t"
					+ String.format("%.1f", (kg * 2 - 1) * 2.2) + "\t\t" + bang
					+ "\t" + String.format("%.2f", bang / 2.2));
			kg++;
			bang += 5;
		}
	}
}