
numTest = int(input())

value = numTest % 10

if value == 2 or value == 4 or value == 5 or value == 7 or value == 9 :
	print('hon')
elif value == 0 or value == 1 or value == 6 or value == 8 :
	print('pon')
elif value == 3 :
	print(bon)