# Fibonnaci series is 1, 1, 2, 3, 5, 8, 13, ... 
# Create a tuple containing the initial Fibonnaci numbers
parents, babies = (1,1)
#Initialize the generation counter
gen = 1

# Take input from the user
nterms = int(input("How many terms? "))

if nterms <= 0:
	print("Please enter a positive integer.")
else:
	while gen <= nterms:
	#	multiple ways to print
	#	print 'Generation', format(gen), ' has ', format(babies), ' babies.'
		print ('Generation %g has %g babies' % (gen, babies))
		parents, babies = (babies, parents + babies)
		gen += 1