import java.util.Scanner;

public class Main {

    public static void main(String[] args) {
        Scanner sc = new Scanner(System.in);
        int n = sc.nextInt();
        int one = Main.findDigits(n);
        switch (one) {
        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("bon");
            break;
        }
        sc.close();
    }

    private static int findDigits(int n) {
        int rtn = n;
        while (n > 0) {
            rtn %= 10;
            n /= 10;
        }
        return rtn;
    }

} import java.util.Scanner; Scanner java.util public class Main {

    public static void main(String[] args) {
        Scanner sc = new Scanner(System.in);
        int n = sc.nextInt();
        int one = Main.findDigits(n);
        switch (one) {
        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("bon");
            break;
        }
        sc.close();
    }

    private static int findDigits(int n) {
        int rtn = n;
        while (n > 0) {
            rtn %= 10;
            n /= 10;
        }
        return rtn;
    }

} Main public static void main(String[] args) {
        Scanner sc = new Scanner(System.in);
        int n = sc.nextInt();
        int one = Main.findDigits(n);
        switch (one) {
        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("bon");
            break;
        }
        sc.close();
    } main {
        Scanner sc = new Scanner(System.in);
        int n = sc.nextInt();
        int one = Main.findDigits(n);
        switch (one) {
        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("bon");
            break;
        }
        sc.close();
    } Scanner sc = new Scanner(System.in); sc new Scanner(System.in) int n = sc.nextInt(); n sc.nextInt() sc.nextInt sc int one = Main.findDigits(n); one Main.findDigits(n) Main.findDigits Main n switch (one) {
        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("bon");
            break;
        } one 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; 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 3: 3 case 3: System.out.println("bon") System.out.println System.out System System.out "bon" break; sc.close() sc.close sc String[] args args private static int findDigits(int n) {
        int rtn = n;
        while (n > 0) {
            rtn %= 10;
            n /= 10;
        }
        return rtn;
    } findDigits {
        int rtn = n;
        while (n > 0) {
            rtn %= 10;
            n /= 10;
        }
        return rtn;
    } int rtn = n; rtn n while (n > 0) {
            rtn %= 10;
            n /= 10;
        } n > 0 n 0 {
            rtn %= 10;
            n /= 10;
        } rtn %= 10 rtn 10 n /= 10 n 10 return rtn; rtn int n n public class Main {

    public static void main(String[] args) {
        Scanner sc = new Scanner(System.in);
        int n = sc.nextInt();
        int one = Main.findDigits(n);
        switch (one) {
        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("bon");
            break;
        }
        sc.close();
    }

    private static int findDigits(int n) {
        int rtn = n;
        while (n > 0) {
            rtn %= 10;
            n /= 10;
        }
        return rtn;
    }

} public class Main {

    public static void main(String[] args) {
        Scanner sc = new Scanner(System.in);
        int n = sc.nextInt();
        int one = Main.findDigits(n);
        switch (one) {
        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("bon");
            break;
        }
        sc.close();
    }

    private static int findDigits(int n) {
        int rtn = n;
        while (n > 0) {
            rtn %= 10;
            n /= 10;
        }
        return rtn;
    }

} Main
import java.util.Scanner;

public class Main {

    public static void main(String[] args) {
        Scanner sc = new Scanner(System.in);
        int n = sc.nextInt();
        int one = Main.findDigits(n);
        switch (one) {
        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("bon");
            break;
        }
        sc.close();
    }

    private static int findDigits(int n) {
        int rtn = n;
        while (n > 0) {
            rtn %= 10;
            n /= 10;
        }
        return rtn;
    }

}
