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public class Datum {

    public static void main(String[] args) {
	int day;
	int month;
	int year = Integer.parseInt;

	if ((month == 4) || (month == 6) || (month == 9) || (month = 11)) {
		days = 30;
	else
		if (month == 2){
			days = 28;
		else
			days = 31;
		}
	}


	if ((year % 400) == 0) {
	   
	 else 
	    if ((year % 100) == 0); 
		
	     else 
		 ((year % 4) == 0); 
		}

	System.out.println(day"/"+ month"/"+ year);
	}
}