import java.util.Scanner;

public class Utholdenhet
{

    public static void main (String []args )
    {
        Scanner input = new Scanner (System.in);


        System.out.println ("Skriv inn et heltall:");
        int helTall = input.nextInt();

        int resultat = 0;

        int ant_ganger = 0;

        for(int i = 0; i < 1000; i++)
        {


        if (helTall %2 == 0){

            ant_ganger ++;

            resultat = helTall / 2;
        }

        else if(helTall % 3 == 1){

            resultat = helTall * 3 + 1;

            ant_ganger ++;
        }


        else if( resultat == 1){
            break;
        }
        else {
            System.out.println("Dette funker ikke");
        }
    }



    System.out.println("Utholdenhet:" + ant_ganger);
    }

}