1class DayShower
 2{
 3    public static void main(String[] args)
 4    {
 5        int yearIn=2004;
 6        int monthIn=2;
 7        if(args.length>0)
 8        {
 9            monthIn=Integer.parseInt(args[0]);
10        }
11        if(args.length>1)
12        {
13            yearIn=Integer.parseInt(args[1]);
14        }
15        System.out.println(yearIn+"Äê"+monthIn+"ÔÂÓÐ"+countDays(monthIn,yearIn)+"Ìì");
16    }
17    static int countDays(int month,int year)
18    {
19        int count=-1;
20        switch(month)
21        {
22            case 1:
23            case 3:
24            case 5:
25            case 7:
26            case 8:
27            case 10:
28            case 12: count=21;break;
29            case 4:
30            case 6:
31            case 9:
32            case 11: count=30;break;
33            case 2:
34            if(year%4==0)
35            {
36                count=29;
37            }
38            else
39            {
40                count=28;
41            }        
42            if((year%100==0)&(year%400!=0))
43            {
44                count=28;
45            }
46        }
47        return count;
48    }
49}