age=17
if age<2:
	print('he is a baby!')
elif age>=2 and age<4:
	print('he is studing walk.')
elif age>=4 and age<13:
	print('he is a adult')
elif age>=13 and age<=20:
	print('he is a teenager')
elif age>=20 and age<=65:
	print('he is a man')
else:
	print('he is an oldman!!')