n = int(input()[-1])

if n == 2 or n == 4 or n == 5 or n == 7 or n == 9:

    print('hon')

elif n == 0 or  n==1 or  n==6 or  n==8:

    print('pon')

else:

    print('bon')
n = int(input()[-1])

if n == 3:

    print('bon')

elif n in set([0, 1, 6, 8]):

    print('pon')

else:

    print('hon')

n = int(input()[-1])
if n == 2 or n == 4 or n == 5 or n == 7 or n == 9:
    print("hon")
elif n == 0 or n == 1 or n == 6 or n == 8:
    print("pon")
else:
    print("bon")

n = int(input()[-1])
if n == 3:
    print("bon")
elif n in set([0, 1, 6, 8]):
    print("pon")
else:
    print("hon")

-if n == 2 or n == 4 or n == 5 or n == 7 or n == 9: -    print("hon") -elif n == 0 or n == 1 or n == 6 or n == 8: +if n == 3: +    print("bon") +elif n in set([0, 1, 6, 8]): -    print("bon") +    print("hon")