import java.util.Scanner;

public class JavaApplication8 {
private static Scanner scanner = new Scanner( System.in );

    public static void main(String[] args) {

        System.out.println("set A:");
        Integer a = new Integer(scanner.nextInt());
        System.out.println("set B");
        Integer b = new Integer(scanner.nextInt());

       while(a!=b)
        {
            if (a>b)
            {
                a--;
                System.out.println(a);
            }
            if (a<b)
            {
                a++;
                System.out.println(a);
            }
        }
    }

}