import java.util.Scanner;

public class Main {
	public static void main(String[] args) {
		Scanner sc = new Scanner(System.in);
		// 入力
		String n = sc.next();
		String n1 = n.substring(n.length() - 1);
		int n2 = Integer.parseInt(n1);
		// 判定
		switch (n2) {
		case 2:
		case 4:
		case 5:
		case 7:
		case 9:
			System.out.println("hon");
			;
			break;
		case 0:
		case 1:
		case 6:
		case 8:
			System.out.println("pon");
			;
			break;
		case 3:
			System.out.println("pon");
			;
			break;
		}
		sc.close();
	}
}
