// to represent a calendar date 
class Date { 
	int year; 
	int month; 
	int day; 
  
	Date(int year, int month, int day){ 
		this.year = year; 
		this.month = month; 
		this.day = day; 
	} 
} 

class Examples { 
	Examples() {} 
  
	// good dates 
	Date d20060928 = new Date(2006, 9, 28); // Sept 28, 2006 
	Date d20071012 = new Date(2007, 10, 12); // Oct 12, 2007 

	// bad dates 
	Date b34453323 = new Date(3445, 33, 23); 
}