import java.util.Scanner;

public class Main {

	public static void main(String[] args) {
		try (Scanner scanner = new Scanner(System.in)) {
			char[] s = scanner.next().toCharArray();
			switch (s[s.length - 1]) {
			case '0':
			case '1':
			case '6':
			case '8':
				System.out.println("pon");
				break;
			case '2':
			case '4':
			case '5':
			case '7':
			case '9':
				System.out.println("hon");
				break;
			default:
				System.out.println("bon");
				break;
			}
		}
	}
} import java.util.Scanner; Scanner java.util public class Main {

	public static void main(String[] args) {
		try (Scanner scanner = new Scanner(System.in)) {
			char[] s = scanner.next().toCharArray();
			switch (s[s.length - 1]) {
			case '0':
			case '1':
			case '6':
			case '8':
				System.out.println("pon");
				break;
			case '2':
			case '4':
			case '5':
			case '7':
			case '9':
				System.out.println("hon");
				break;
			default:
				System.out.println("bon");
				break;
			}
		}
	}
} Main public static void main(String[] args) {
		try (Scanner scanner = new Scanner(System.in)) {
			char[] s = scanner.next().toCharArray();
			switch (s[s.length - 1]) {
			case '0':
			case '1':
			case '6':
			case '8':
				System.out.println("pon");
				break;
			case '2':
			case '4':
			case '5':
			case '7':
			case '9':
				System.out.println("hon");
				break;
			default:
				System.out.println("bon");
				break;
			}
		}
	} main {
		try (Scanner scanner = new Scanner(System.in)) {
			char[] s = scanner.next().toCharArray();
			switch (s[s.length - 1]) {
			case '0':
			case '1':
			case '6':
			case '8':
				System.out.println("pon");
				break;
			case '2':
			case '4':
			case '5':
			case '7':
			case '9':
				System.out.println("hon");
				break;
			default:
				System.out.println("bon");
				break;
			}
		}
	} try (Scanner scanner = new Scanner(System.in)) {
			char[] s = scanner.next().toCharArray();
			switch (s[s.length - 1]) {
			case '0':
			case '1':
			case '6':
			case '8':
				System.out.println("pon");
				break;
			case '2':
			case '4':
			case '5':
			case '7':
			case '9':
				System.out.println("hon");
				break;
			default:
				System.out.println("bon");
				break;
			}
		} {
			char[] s = scanner.next().toCharArray();
			switch (s[s.length - 1]) {
			case '0':
			case '1':
			case '6':
			case '8':
				System.out.println("pon");
				break;
			case '2':
			case '4':
			case '5':
			case '7':
			case '9':
				System.out.println("hon");
				break;
			default:
				System.out.println("bon");
				break;
			}
		} Scanner scanner = new Scanner(System.in) Scanner scanner = new Scanner(System.in) new Scanner(System.in) char[] s = scanner.next().toCharArray(); s scanner.next().toCharArray() scanner.next().toCharArray scanner.next() scanner.next scanner switch (s[s.length - 1]) {
			case '0':
			case '1':
			case '6':
			case '8':
				System.out.println("pon");
				break;
			case '2':
			case '4':
			case '5':
			case '7':
			case '9':
				System.out.println("hon");
				break;
			default:
				System.out.println("bon");
				break;
			} s[s.length - 1] s s.length - 1 s.length s s.length 1 case '0': '0' case '0': case '1': '1' case '1': case '6': '6' case '6': case '8': '8' case '8': System.out.println("pon") System.out.println System.out System System.out "pon" break; case '2': '2' case '2': case '4': '4' case '4': case '5': '5' case '5': case '7': '7' case '7': case '9': '9' case '9': System.out.println("hon") System.out.println System.out System System.out "hon" break; default: default: System.out.println("bon") System.out.println System.out System System.out "bon" break; String[] args args public class Main {

	public static void main(String[] args) {
		try (Scanner scanner = new Scanner(System.in)) {
			char[] s = scanner.next().toCharArray();
			switch (s[s.length - 1]) {
			case '0':
			case '1':
			case '6':
			case '8':
				System.out.println("pon");
				break;
			case '2':
			case '4':
			case '5':
			case '7':
			case '9':
				System.out.println("hon");
				break;
			default:
				System.out.println("bon");
				break;
			}
		}
	}
} public class Main {

	public static void main(String[] args) {
		try (Scanner scanner = new Scanner(System.in)) {
			char[] s = scanner.next().toCharArray();
			switch (s[s.length - 1]) {
			case '0':
			case '1':
			case '6':
			case '8':
				System.out.println("pon");
				break;
			case '2':
			case '4':
			case '5':
			case '7':
			case '9':
				System.out.println("hon");
				break;
			default:
				System.out.println("bon");
				break;
			}
		}
	}
} Main
import java.util.Scanner;

public class Main {

	public static void main(String[] args) {
		try (Scanner scanner = new Scanner(System.in)) {
			char[] s = scanner.next().toCharArray();
			switch (s[s.length - 1]) {
			case '0':
			case '1':
			case '6':
			case '8':
				System.out.println("pon");
				break;
			case '2':
			case '4':
			case '5':
			case '7':
			case '9':
				System.out.println("hon");
				break;
			default:
				System.out.println("bon");
				break;
			}
		}
	}
}
