package wyjatki;

public class Test {

    public int daysToHours(int days){


        if (days < 0) {
            throw new IllegalArgumentException("Day must be >= 0: " + days);
        }

        return days*24;

    }

    public static void main(String[] agrs){

        Test t = new Test();
        int days = 0;

        for(String strDays: agrs){

        	try{
        		days = Integer.parseInt(strDays);
        		System.out.println(days + " dni to " + t.daysToHours(days) + " h.");
        	}
        	catch (NumberFormatException ex){
        		System.out.println(ex.getMessage());
        		ex.printStackTrace();
        	}
        	catch (IllegalArgumentException ex){
        		System.out.println(-days + " dni to " + t.daysToHours(-days) + " h.");
        	}
        	finally {
				System.out.println();
			}
        }

    }

}