import acm.program.*;

public class Hailstone extends ConsoleProgram {
	
	public void run() {
		int n = readInt ("Enter a number: ");
		int turns = 1;
		while (n != 1) {
			if ((n % 2) == 0){
				numEven(n);	
			} else {
				numOdd(n);
			}
			turns++;
		}
		println ("The process took " + turns + " to reach 1.");
	}

	// numEven computes the answer if n is even.
	private int numEven (int n) {
		int j = n/2;
		println (n + " is even so I take half: " + j);
		return j;
	}
	
	// numOdd computes the answer if n is odd.
	private int numOdd (int n) {
		int k = (int)(n * 3) + 1;
		println (n + " is odd, so I make 3n + 1: "+ k);
		return k;
	}
	
}

numOdd(n);

n = numOdd(n);