#include <iostream>
 
using namespace std;
 
int hailstone(int outinput);
 
int main()
{
	int outinput=3, counter;
 
  	counter = hailstone(outinput);
 
  	cout <<"counter " << counter << endl;
 
return 0;
}
 
int hailstone(int outinput)
{
int counter = 0;
 
for(outinput; outinput != 1; )
{
  if(outinput % 2 == 0)
  {
  outinput = outinput / 2;
  counter++;
  }
  else if(outinput % 2 != 0)
  {
  outinput = outinput * 3 + 1;
  counter++;
  }
 
}
 
return counter;
}

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