Updating goals wrt tail recursion / looping.
Updating goals wrt tail recursion / looping.

pauldoo/scratch,pauldoo/scratch,pauldoo/scratch,pauldoo/scratch,pauldoo/scratch,pauldoo/scratch,pauldoo/scratch,pauldoo/scratch,pauldoo/scratch,pauldoo/scratch,pauldoo/scratch,pauldoo/scratch,pauldoo/scratch,pauldoo/scratch