import java.util.Scanner;

public class Driver
{
    public static void main2(String [] args)
    {
        Scanner in = new Scanner(System.in);
        String s = in.nextLine();
        int n = in.nextInt();
        double d = in.nextDouble();
        System.out.println(s);
        System.out.println(n);
        System.out.println(d);
   
        /*
        n = in.nextInt();
        s = in.nextLine();
        d = in.nextDouble();
        System.out.println(s);
        System.out.println(n);
        System.out.println(d);     
        */
    }
    
    
    public static void main4(String [] args)
    {
        Scanner in = new Scanner(System.in);
        System.out.println("Enter values for n, d, and b");
        int n = in.nextInt();
        double d = in.nextDouble();
        byte b = in.nextByte();
        
        System.out.format("n = %d%nd = %f%nb = %b", n, d, b);
    }
    
    public static void main6(String [] args)
    {
        double x = 2.0 / 3.0;
        System.out.format(
            "x = %4.3f", 
            x
        );
    }
    
    public static void main3(String [] args)
    {
        double x = 2.0 / 3.0;
        char c = 'd';
        int y = 777;
        System.out.format(
            "x = %4.2f%c%4d%n", 
            x, c, y
        );
    }
    
    public static void main(String [] args)
    {
        //get user input
        Scanner in = new Scanner(System.in);
        System.out.println("What is the year? >");
        int year = in.nextInt();
        System.out.println("year = " + year);
        
        //print is a leap year or not
        if(isLeapYear(year))
        {
            System.out.println("THIS IS A LEAP YEAR");
        }
        else
        {
            System.out.println("common year...");
        }
    }
    
    public static boolean isLeapYear(int year)
    {
        //https://en.wikipedia.org/wiki/Leap_year
        /*
         * if (year is not divisible by 4) then (it is a common year)
         * else if (year is not divisible by 400) then (it is a common year)
         * else (it is a leap year)
         */
        
        System.out.println("year % 4 = " + (year % 4));
        System.out.println("year % 400 = " + (year % 400));
        
        if(year % 4 != 0)
        {
            return false;
        }
        else if(year % 400 == 0)
        {
            return true;
        }
        else if(year % 100 == 0)
        {
            return false;
        }
        else
        {
            return true;
        }
    }
}