'''Define a function overlapping() that takes two lists and returns True if they
 have at least one member in common, False otherwise. You may use your
 is_member() function, or the in operator, but for the sake of the exercise,
 you should (also) write it using two nested for-loops.'''

def overlapping(lst1, lst2):
	'''
	This function returns true if two lists passed as parameters have a least one
	member in common

	Parameters
	----------
	lst1 (list)
	lst2 (list)

	Returns
	----------
	True the two lists shares at least one member in common
	False otherwise
	'''
	if [i == j for j in lst2 for i in lst1 if i == j]:
		return True
	return False
