import java.io.*;
import java.util.StringTokenizer;

public class Main {

    public static void main(String[] args) throws IOException {
        InputStream inputStream = System.in;
        OutputStream outputStream = System.out;
        InputReader in = new InputReader(inputStream);
        PrintWriter out = new PrintWriter(outputStream);
        TaskB solver = new TaskB();
        solver.solve(1, in, out);
        out.close();
    }

    static class TaskB {
        public void solve(int testNumber, InputReader in, PrintWriter out) {
            int t = in.nextInt();
            t %=10;
            if (t==2 ||t==4 ||t==5 ||t==7 || t==9){
                out.println("hon");
            } else if (t==0 ||t==1 ||t==6 ||t==8){
                out.println("pon");
            } else {
                out.println("bon");
            }
        }

        private static int naib(int a, int b) {
            return a / (nod(a, b)) * b;
        }

        private static int nod(int a, int b) {
            while (a != 0 && b != 0) {
                if (a > b) {
                    a = a % b;
                } else {
                    b = b % a;
                }
            }
            return a + b;
        }
    }


    static class InputReader {
        public BufferedReader reader;
        public StringTokenizer tokenizer;

        public InputReader(InputStream stream) {
            reader = new BufferedReader(new InputStreamReader(stream), 32768);
            tokenizer = null;
        }

        public String next() {
            while (tokenizer == null || !tokenizer.hasMoreTokens()) {
                try {
                    tokenizer = new StringTokenizer(reader.readLine());
                } catch (IOException e) {
                    throw new RuntimeException(e);
                }
            }
            return tokenizer.nextToken();
        }

        public int nextInt() {
            return Integer.parseInt(next());
        }

        public Long nextLong() {
            return Long.parseLong(next());
        }

    }
} import java.io.*; io.* java import java.util.StringTokenizer; StringTokenizer java.util public class Main {

    public static void main(String[] args) throws IOException {
        InputStream inputStream = System.in;
        OutputStream outputStream = System.out;
        InputReader in = new InputReader(inputStream);
        PrintWriter out = new PrintWriter(outputStream);
        TaskB solver = new TaskB();
        solver.solve(1, in, out);
        out.close();
    }

    static class TaskB {
        public void solve(int testNumber, InputReader in, PrintWriter out) {
            int t = in.nextInt();
            t %=10;
            if (t==2 ||t==4 ||t==5 ||t==7 || t==9){
                out.println("hon");
            } else if (t==0 ||t==1 ||t==6 ||t==8){
                out.println("pon");
            } else {
                out.println("bon");
            }
        }

        private static int naib(int a, int b) {
            return a / (nod(a, b)) * b;
        }

        private static int nod(int a, int b) {
            while (a != 0 && b != 0) {
                if (a > b) {
                    a = a % b;
                } else {
                    b = b % a;
                }
            }
            return a + b;
        }
    }


    static class InputReader {
        public BufferedReader reader;
        public StringTokenizer tokenizer;

        public InputReader(InputStream stream) {
            reader = new BufferedReader(new InputStreamReader(stream), 32768);
            tokenizer = null;
        }

        public String next() {
            while (tokenizer == null || !tokenizer.hasMoreTokens()) {
                try {
                    tokenizer = new StringTokenizer(reader.readLine());
                } catch (IOException e) {
                    throw new RuntimeException(e);
                }
            }
            return tokenizer.nextToken();
        }

        public int nextInt() {
            return Integer.parseInt(next());
        }

        public Long nextLong() {
            return Long.parseLong(next());
        }

    }
} Main public static void main(String[] args) throws IOException {
        InputStream inputStream = System.in;
        OutputStream outputStream = System.out;
        InputReader in = new InputReader(inputStream);
        PrintWriter out = new PrintWriter(outputStream);
        TaskB solver = new TaskB();
        solver.solve(1, in, out);
        out.close();
    } main {
        InputStream inputStream = System.in;
        OutputStream outputStream = System.out;
        InputReader in = new InputReader(inputStream);
        PrintWriter out = new PrintWriter(outputStream);
        TaskB solver = new TaskB();
        solver.solve(1, in, out);
        out.close();
    } InputStream inputStream = System.in; inputStream System.in System System.in OutputStream outputStream = System.out; outputStream System.out System System.out InputReader in = new InputReader(inputStream); in new InputReader(inputStream) PrintWriter out = new PrintWriter(outputStream); out new PrintWriter(outputStream) TaskB solver = new TaskB(); solver new TaskB() solver.solve(1, in, out) solver.solve solver 1 in out out.close() out.close out String[] args args static class TaskB {
        public void solve(int testNumber, InputReader in, PrintWriter out) {
            int t = in.nextInt();
            t %=10;
            if (t==2 ||t==4 ||t==5 ||t==7 || t==9){
                out.println("hon");
            } else if (t==0 ||t==1 ||t==6 ||t==8){
                out.println("pon");
            } else {
                out.println("bon");
            }
        }

        private static int naib(int a, int b) {
            return a / (nod(a, b)) * b;
        }

        private static int nod(int a, int b) {
            while (a != 0 && b != 0) {
                if (a > b) {
                    a = a % b;
                } else {
                    b = b % a;
                }
            }
            return a + b;
        }
    } TaskB public void solve(int testNumber, InputReader in, PrintWriter out) {
            int t = in.nextInt();
            t %=10;
            if (t==2 ||t==4 ||t==5 ||t==7 || t==9){
                out.println("hon");
            } else if (t==0 ||t==1 ||t==6 ||t==8){
                out.println("pon");
            } else {
                out.println("bon");
            }
        } solve {
            int t = in.nextInt();
            t %=10;
            if (t==2 ||t==4 ||t==5 ||t==7 || t==9){
                out.println("hon");
            } else if (t==0 ||t==1 ||t==6 ||t==8){
                out.println("pon");
            } else {
                out.println("bon");
            }
        } int t = in.nextInt(); t in.nextInt() in.nextInt in t %=10 t 10 if (t==2 ||t==4 ||t==5 ||t==7 || t==9){
                out.println("hon");
            } else if (t==0 ||t==1 ||t==6 ||t==8){
                out.println("pon");
            } else {
                out.println("bon");
            } t==2 ||t==4 ||t==5 ||t==7 || t==9 t==7 t==5 t==2 ||t==4 ||t==5 ||t==7 || t==9 t==2 t 2 t==4 t 4 t==5 t 5 t==7 t 7 t==9 t 9 {
                out.println("hon");
            } out.println("hon") out.println out "hon" if (t==0 ||t==1 ||t==6 ||t==8){
                out.println("pon");
            } else {
                out.println("bon");
            } t==0 ||t==1 ||t==6 ||t==8 t==6 t==0 ||t==1 ||t==6 ||t==8 t==0 t 0 t==1 t 1 t==6 t 6 t==8 t 8 {
                out.println("pon");
            } out.println("pon") out.println out "pon" {
                out.println("bon");
            } out.println("bon") out.println out "bon" int testNumber testNumber InputReader in in PrintWriter out out private static int naib(int a, int b) {
            return a / (nod(a, b)) * b;
        } naib {
            return a / (nod(a, b)) * b;
        } return a / (nod(a, b)) * b; a / (nod(a, b)) * b a / (nod(a, b)) a (nod(a, b)) nod a b b int a a int b b private static int nod(int a, int b) {
            while (a != 0 && b != 0) {
                if (a > b) {
                    a = a % b;
                } else {
                    b = b % a;
                }
            }
            return a + b;
        } nod {
            while (a != 0 && b != 0) {
                if (a > b) {
                    a = a % b;
                } else {
                    b = b % a;
                }
            }
            return a + b;
        } while (a != 0 && b != 0) {
                if (a > b) {
                    a = a % b;
                } else {
                    b = b % a;
                }
            } a != 0 && b != 0 a != 0 a 0 b != 0 b 0 {
                if (a > b) {
                    a = a % b;
                } else {
                    b = b % a;
                }
            } if (a > b) {
                    a = a % b;
                } else {
                    b = b % a;
                } a > b a b {
                    a = a % b;
                } a = a % b a a % b a b {
                    b = b % a;
                } b = b % a b b % a b a return a + b; a + b a b int a a int b b static class InputReader {
        public BufferedReader reader;
        public StringTokenizer tokenizer;

        public InputReader(InputStream stream) {
            reader = new BufferedReader(new InputStreamReader(stream), 32768);
            tokenizer = null;
        }

        public String next() {
            while (tokenizer == null || !tokenizer.hasMoreTokens()) {
                try {
                    tokenizer = new StringTokenizer(reader.readLine());
                } catch (IOException e) {
                    throw new RuntimeException(e);
                }
            }
            return tokenizer.nextToken();
        }

        public int nextInt() {
            return Integer.parseInt(next());
        }

        public Long nextLong() {
            return Long.parseLong(next());
        }

    } InputReader public BufferedReader reader; reader public StringTokenizer tokenizer; tokenizer public InputReader(InputStream stream) {
            reader = new BufferedReader(new InputStreamReader(stream), 32768);
            tokenizer = null;
        } InputReader {
            reader = new BufferedReader(new InputStreamReader(stream), 32768);
            tokenizer = null;
        } reader = new BufferedReader(new InputStreamReader(stream), 32768) reader new BufferedReader(new InputStreamReader(stream), 32768) tokenizer = null tokenizer null InputStream stream stream public String next() {
            while (tokenizer == null || !tokenizer.hasMoreTokens()) {
                try {
                    tokenizer = new StringTokenizer(reader.readLine());
                } catch (IOException e) {
                    throw new RuntimeException(e);
                }
            }
            return tokenizer.nextToken();
        } next {
            while (tokenizer == null || !tokenizer.hasMoreTokens()) {
                try {
                    tokenizer = new StringTokenizer(reader.readLine());
                } catch (IOException e) {
                    throw new RuntimeException(e);
                }
            }
            return tokenizer.nextToken();
        } while (tokenizer == null || !tokenizer.hasMoreTokens()) {
                try {
                    tokenizer = new StringTokenizer(reader.readLine());
                } catch (IOException e) {
                    throw new RuntimeException(e);
                }
            } tokenizer == null || !tokenizer.hasMoreTokens() tokenizer == null tokenizer null !tokenizer.hasMoreTokens() tokenizer.hasMoreTokens() tokenizer.hasMoreTokens tokenizer {
                try {
                    tokenizer = new StringTokenizer(reader.readLine());
                } catch (IOException e) {
                    throw new RuntimeException(e);
                }
            } try {
                    tokenizer = new StringTokenizer(reader.readLine());
                } catch (IOException e) {
                    throw new RuntimeException(e);
                } catch (IOException e) {
                    throw new RuntimeException(e);
                } IOException e {
                    throw new RuntimeException(e);
                } throw new RuntimeException(e); new RuntimeException(e) {
                    tokenizer = new StringTokenizer(reader.readLine());
                } tokenizer = new StringTokenizer(reader.readLine()) tokenizer new StringTokenizer(reader.readLine()) return tokenizer.nextToken(); tokenizer.nextToken() tokenizer.nextToken tokenizer public int nextInt() {
            return Integer.parseInt(next());
        } nextInt {
            return Integer.parseInt(next());
        } return Integer.parseInt(next()); Integer.parseInt(next()) Integer.parseInt Integer next() next public Long nextLong() {
            return Long.parseLong(next());
        } nextLong {
            return Long.parseLong(next());
        } return Long.parseLong(next()); Long.parseLong(next()) Long.parseLong Long next() next public class Main {

    public static void main(String[] args) throws IOException {
        InputStream inputStream = System.in;
        OutputStream outputStream = System.out;
        InputReader in = new InputReader(inputStream);
        PrintWriter out = new PrintWriter(outputStream);
        TaskB solver = new TaskB();
        solver.solve(1, in, out);
        out.close();
    }

    static class TaskB {
        public void solve(int testNumber, InputReader in, PrintWriter out) {
            int t = in.nextInt();
            t %=10;
            if (t==2 ||t==4 ||t==5 ||t==7 || t==9){
                out.println("hon");
            } else if (t==0 ||t==1 ||t==6 ||t==8){
                out.println("pon");
            } else {
                out.println("bon");
            }
        }

        private static int naib(int a, int b) {
            return a / (nod(a, b)) * b;
        }

        private static int nod(int a, int b) {
            while (a != 0 && b != 0) {
                if (a > b) {
                    a = a % b;
                } else {
                    b = b % a;
                }
            }
            return a + b;
        }
    }


    static class InputReader {
        public BufferedReader reader;
        public StringTokenizer tokenizer;

        public InputReader(InputStream stream) {
            reader = new BufferedReader(new InputStreamReader(stream), 32768);
            tokenizer = null;
        }

        public String next() {
            while (tokenizer == null || !tokenizer.hasMoreTokens()) {
                try {
                    tokenizer = new StringTokenizer(reader.readLine());
                } catch (IOException e) {
                    throw new RuntimeException(e);
                }
            }
            return tokenizer.nextToken();
        }

        public int nextInt() {
            return Integer.parseInt(next());
        }

        public Long nextLong() {
            return Long.parseLong(next());
        }

    }
} public class Main {

    public static void main(String[] args) throws IOException {
        InputStream inputStream = System.in;
        OutputStream outputStream = System.out;
        InputReader in = new InputReader(inputStream);
        PrintWriter out = new PrintWriter(outputStream);
        TaskB solver = new TaskB();
        solver.solve(1, in, out);
        out.close();
    }

    static class TaskB {
        public void solve(int testNumber, InputReader in, PrintWriter out) {
            int t = in.nextInt();
            t %=10;
            if (t==2 ||t==4 ||t==5 ||t==7 || t==9){
                out.println("hon");
            } else if (t==0 ||t==1 ||t==6 ||t==8){
                out.println("pon");
            } else {
                out.println("bon");
            }
        }

        private static int naib(int a, int b) {
            return a / (nod(a, b)) * b;
        }

        private static int nod(int a, int b) {
            while (a != 0 && b != 0) {
                if (a > b) {
                    a = a % b;
                } else {
                    b = b % a;
                }
            }
            return a + b;
        }
    }


    static class InputReader {
        public BufferedReader reader;
        public StringTokenizer tokenizer;

        public InputReader(InputStream stream) {
            reader = new BufferedReader(new InputStreamReader(stream), 32768);
            tokenizer = null;
        }

        public String next() {
            while (tokenizer == null || !tokenizer.hasMoreTokens()) {
                try {
                    tokenizer = new StringTokenizer(reader.readLine());
                } catch (IOException e) {
                    throw new RuntimeException(e);
                }
            }
            return tokenizer.nextToken();
        }

        public int nextInt() {
            return Integer.parseInt(next());
        }

        public Long nextLong() {
            return Long.parseLong(next());
        }

    }
} Main
import java.io.*;
import java.util.StringTokenizer;

public class Main {

    public static void main(String[] args) throws IOException {
        InputStream inputStream = System.in;
        OutputStream outputStream = System.out;
        InputReader in = new InputReader(inputStream);
        PrintWriter out = new PrintWriter(outputStream);
        TaskB solver = new TaskB();
        solver.solve(1, in, out);
        out.close();
    }

    static class TaskB {
        public void solve(int testNumber, InputReader in, PrintWriter out) {
            int t = in.nextInt();
            t %=10;
            if (t==2 ||t==4 ||t==5 ||t==7 || t==9){
                out.println("hon");
            } else if (t==0 ||t==1 ||t==6 ||t==8){
                out.println("pon");
            } else {
                out.println("bon");
            }
        }

        private static int naib(int a, int b) {
            return a / (nod(a, b)) * b;
        }

        private static int nod(int a, int b) {
            while (a != 0 && b != 0) {
                if (a > b) {
                    a = a % b;
                } else {
                    b = b % a;
                }
            }
            return a + b;
        }
    }


    static class InputReader {
        public BufferedReader reader;
        public StringTokenizer tokenizer;

        public InputReader(InputStream stream) {
            reader = new BufferedReader(new InputStreamReader(stream), 32768);
            tokenizer = null;
        }

        public String next() {
            while (tokenizer == null || !tokenizer.hasMoreTokens()) {
                try {
                    tokenizer = new StringTokenizer(reader.readLine());
                } catch (IOException e) {
                    throw new RuntimeException(e);
                }
            }
            return tokenizer.nextToken();
        }

        public int nextInt() {
            return Integer.parseInt(next());
        }

        public Long nextLong() {
            return Long.parseLong(next());
        }

    }
}
