∴ (Therefore)

The cat Snuke wants to play a popular Japanese game called ÅtCoder, so Iroha has decided to teach him Japanese.

When counting pencils in Japanese, the counter word "本" follows the number. The pronunciation of this word varies depending on the number. Specifically, the pronunciation of "本" in the phrase "N 本" for a positive integer N not exceeding 999 is as follows:

• hon when the digit in the one's place of N is 2, 4, 5, 7, or 9;
• pon when the digit in the one's place of N is 0, 1, 6 or 8;
• bon when the digit in the one's place of N is 3.

Given N, print the pronunciation of "本" in the phrase "N 本".

Constraints

• N is a positive integer not exceeding 999.

Input

Input is given from Standard Input in the following format:

N

Output

Print the answer.

Examples

Input

16

Output

pon

Input

2

Output

hon

Input

183

Output

bon

inputFormat

Input

Input is given from Standard Input in the following format:

N

outputFormat

Output

Print the answer.

Examples

Input

16

Output

pon

Input

2

Output

hon

Input

183

Output

bon

样例

16

pon