import java.util.Scanner;

public class LeapYear {     public static void main(String[] args) {         Scanner scanner = new Scanner(System.in);         System.out.println("Please input the year:");         int year = scanner.nextInt();                  System.out.println(year % 4 == 0? (year % 100 == 0 ? "common year" : "leap year") :              (year % 400 == 0 ? "leap year" : "common year"));     }
}