#!/usr/bin/env python3
import sys


def solve(N: int):
    mod = N % 10
    if mod == 3:
        print("bon")
    elif mod in [0, 1, 6, 9]:
        #(mod == 0 OR mod == 1 OR mod ==6 OR mod == 8):
        print("pon")
    else:
        print("hon")
    return


# Generated by 1.1.7.1 https://github.com/kyuridenamida/atcoder-tools  (tips: You use the default template now. You can remove this line by using your custom template)
def main():
    def iterate_tokens():
        for line in sys.stdin:
            for word in line.split():
                yield word
    tokens = iterate_tokens()
    N = int(next(tokens))  # type: int
    solve(N)

if __name__ == '__main__':
    main()
