//The program get a number and it's  shows a seires
#include <iostream.h>
void main()
{
	int num, counter, counter2;
	cout<<"Enter a number \n";
	cin>>num;
	if ((num>100)||(num<1))
		cout<<"Error \n";
	counter=0;
	while (!cin.eof())
	{
		while (num>0);
		if (num%2==0)
		{
			num=num/2;
			cout<<num<<" \n";
		}
		else 
		{
			num=3*num+1;
			cout<<num<<" \n";
		}
		cout<<"Enter a number \n";
		cin>>num;
		if ((num>100)||(num<0))
		cout<<"Error \n";
	}
}