/*
 * Problem 2: Write a program that accepts two 
 * numbers from the command line and prints them out.
 * Then use a for loop to print the next 13 numbers in
 * the sequence where each number is the sum of the
 * previous two. For example:
 */

public class prob2 {
	
	int number_one = 0;
	int number_two = 0; 
	int seq_count = 0;
	String output;
	
	public prob2(int number_one, int number_two) {
		this.number_one = number_one;
		this.number_two = number_two;
	}
	
	public int fib(int nr_) {
		if(seq_count == 13) return 1;
		
		seq_count++;
		
		if(nr_ == 0)  return fib(this.number_one-1) + fib(this.number_two-2);
		this.output =  output + " " + nr_;
		return (fib(nr_-1) + fib(nr_-2));
	}

	public void fibonacci() {
			System.out.println("Sequence :");
			System.out.println(this.number_one+" "+this.number_two);
			if(fib(0) == 1)
			System.out.println(this.output);
	}
	
	public void go() {
		fibonacci();
	}
	
	public static void main(String[] args) {
		
		if(args.length < 2 || args.length > 2) {
			System.out.println("Problem, you need insert two numbers");
			System.exit(-1);
		}
		int argument_1 = Integer.parseInt(args[0]);
		int argument_2 = Integer.parseInt(args[1]);
		prob2 program = new prob2(argument_1, argument_2);
		program.go();
	}

}