
import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStreamReader;
import java.util.StringTokenizer;

//BufferReader
public class  Main {
//    static long dp[][];
//    static int n;
//    static int a[];
//    static int ans[];

    static class FastReader {
        BufferedReader br;
        StringTokenizer st;


        public FastReader() {
            br = new BufferedReader(new InputStreamReader(System.in));
        }

        String next() {
            while (st == null || !st.hasMoreElements()) {
                try {
                    st = new StringTokenizer(br.readLine());
                } catch (IOException e) {
                    e.printStackTrace();
                }
            }
            return st.nextToken();
        }

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

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

        double nextDouble() {
            return Double.parseDouble(next());
        }

        String nextLine() {
            String str = "";
            try {
                str = br.readLine();
            } catch (IOException e) {
                e.printStackTrace();
            }
            return str;
        }
    }

    public static void main(String[] args) {
        FastReader sc=new FastReader();
        int p=sc.nextInt();
         int n=p%10;
        if ( n==2 || n==4 || n==5 || n==7 || n==9 )
            System.out.println("hon");
        else if ( n==0 || n==6 || n==1 || n==8 )
            System.out.println("pon");
        else System.out.println("bon");
    }


} import java.io.BufferedReader; BufferedReader java.io import java.io.IOException; IOException java.io import java.io.InputStreamReader; InputStreamReader java.io import java.util.StringTokenizer; StringTokenizer java.util public class  Main {
//    static long dp[][];
//    static int n;
//    static int a[];
//    static int ans[];

    static class FastReader {
        BufferedReader br;
        StringTokenizer st;


        public FastReader() {
            br = new BufferedReader(new InputStreamReader(System.in));
        }

        String next() {
            while (st == null || !st.hasMoreElements()) {
                try {
                    st = new StringTokenizer(br.readLine());
                } catch (IOException e) {
                    e.printStackTrace();
                }
            }
            return st.nextToken();
        }

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

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

        double nextDouble() {
            return Double.parseDouble(next());
        }

        String nextLine() {
            String str = "";
            try {
                str = br.readLine();
            } catch (IOException e) {
                e.printStackTrace();
            }
            return str;
        }
    }

    public static void main(String[] args) {
        FastReader sc=new FastReader();
        int p=sc.nextInt();
         int n=p%10;
        if ( n==2 || n==4 || n==5 || n==7 || n==9 )
            System.out.println("hon");
        else if ( n==0 || n==6 || n==1 || n==8 )
            System.out.println("pon");
        else System.out.println("bon");
    }


} Main public static void main(String[] args) {
        FastReader sc=new FastReader();
        int p=sc.nextInt();
         int n=p%10;
        if ( n==2 || n==4 || n==5 || n==7 || n==9 )
            System.out.println("hon");
        else if ( n==0 || n==6 || n==1 || n==8 )
            System.out.println("pon");
        else System.out.println("bon");
    } main {
        FastReader sc=new FastReader();
        int p=sc.nextInt();
         int n=p%10;
        if ( n==2 || n==4 || n==5 || n==7 || n==9 )
            System.out.println("hon");
        else if ( n==0 || n==6 || n==1 || n==8 )
            System.out.println("pon");
        else System.out.println("bon");
    } FastReader sc=new FastReader(); sc new FastReader() int p=sc.nextInt(); p sc.nextInt() sc.nextInt sc int n=p%10; n p%10 p 10 if ( n==2 || n==4 || n==5 || n==7 || n==9 )
            System.out.println("hon");
        else if ( n==0 || n==6 || n==1 || n==8 )
            System.out.println("pon");
        else System.out.println("bon"); n==2 || n==4 || n==5 || n==7 || n==9 n==7 n==5 n==2 || n==4 || n==5 || n==7 || n==9 n==2 n 2 n==4 n 4 n==5 n 5 n==7 n 7 n==9 n 9 System.out.println("hon") System.out.println System.out System System.out "hon" if ( n==0 || n==6 || n==1 || n==8 )
            System.out.println("pon");
        else System.out.println("bon"); n==0 || n==6 || n==1 || n==8 n==1 n==0 || n==6 || n==1 || n==8 n==0 n 0 n==6 n 6 n==1 n 1 n==8 n 8 System.out.println("pon") System.out.println System.out System System.out "pon" System.out.println("bon") System.out.println System.out System System.out "bon" String[] args args static class FastReader {
        BufferedReader br;
        StringTokenizer st;


        public FastReader() {
            br = new BufferedReader(new InputStreamReader(System.in));
        }

        String next() {
            while (st == null || !st.hasMoreElements()) {
                try {
                    st = new StringTokenizer(br.readLine());
                } catch (IOException e) {
                    e.printStackTrace();
                }
            }
            return st.nextToken();
        }

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

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

        double nextDouble() {
            return Double.parseDouble(next());
        }

        String nextLine() {
            String str = "";
            try {
                str = br.readLine();
            } catch (IOException e) {
                e.printStackTrace();
            }
            return str;
        }
    } FastReader BufferedReader br; br StringTokenizer st; st public FastReader() {
            br = new BufferedReader(new InputStreamReader(System.in));
        } FastReader {
            br = new BufferedReader(new InputStreamReader(System.in));
        } br = new BufferedReader(new InputStreamReader(System.in)) br new BufferedReader(new InputStreamReader(System.in)) String next() {
            while (st == null || !st.hasMoreElements()) {
                try {
                    st = new StringTokenizer(br.readLine());
                } catch (IOException e) {
                    e.printStackTrace();
                }
            }
            return st.nextToken();
        } next {
            while (st == null || !st.hasMoreElements()) {
                try {
                    st = new StringTokenizer(br.readLine());
                } catch (IOException e) {
                    e.printStackTrace();
                }
            }
            return st.nextToken();
        } while (st == null || !st.hasMoreElements()) {
                try {
                    st = new StringTokenizer(br.readLine());
                } catch (IOException e) {
                    e.printStackTrace();
                }
            } st == null || !st.hasMoreElements() st == null st null !st.hasMoreElements() st.hasMoreElements() st.hasMoreElements st {
                try {
                    st = new StringTokenizer(br.readLine());
                } catch (IOException e) {
                    e.printStackTrace();
                }
            } try {
                    st = new StringTokenizer(br.readLine());
                } catch (IOException e) {
                    e.printStackTrace();
                } catch (IOException e) {
                    e.printStackTrace();
                } IOException e {
                    e.printStackTrace();
                } e.printStackTrace() e.printStackTrace e {
                    st = new StringTokenizer(br.readLine());
                } st = new StringTokenizer(br.readLine()) st new StringTokenizer(br.readLine()) return st.nextToken(); st.nextToken() st.nextToken st int nextInt() {
            return Integer.parseInt(next());
        } nextInt {
            return Integer.parseInt(next());
        } return Integer.parseInt(next()); Integer.parseInt(next()) Integer.parseInt Integer next() next long nextLong() {
            return Long.parseLong(next());
        } nextLong {
            return Long.parseLong(next());
        } return Long.parseLong(next()); Long.parseLong(next()) Long.parseLong Long next() next double nextDouble() {
            return Double.parseDouble(next());
        } nextDouble {
            return Double.parseDouble(next());
        } return Double.parseDouble(next()); Double.parseDouble(next()) Double.parseDouble Double next() next String nextLine() {
            String str = "";
            try {
                str = br.readLine();
            } catch (IOException e) {
                e.printStackTrace();
            }
            return str;
        } nextLine {
            String str = "";
            try {
                str = br.readLine();
            } catch (IOException e) {
                e.printStackTrace();
            }
            return str;
        } String str = ""; str "" try {
                str = br.readLine();
            } catch (IOException e) {
                e.printStackTrace();
            } catch (IOException e) {
                e.printStackTrace();
            } IOException e {
                e.printStackTrace();
            } e.printStackTrace() e.printStackTrace e {
                str = br.readLine();
            } str = br.readLine() str br.readLine() br.readLine br return str; str public class  Main {
//    static long dp[][];
//    static int n;
//    static int a[];
//    static int ans[];

    static class FastReader {
        BufferedReader br;
        StringTokenizer st;


        public FastReader() {
            br = new BufferedReader(new InputStreamReader(System.in));
        }

        String next() {
            while (st == null || !st.hasMoreElements()) {
                try {
                    st = new StringTokenizer(br.readLine());
                } catch (IOException e) {
                    e.printStackTrace();
                }
            }
            return st.nextToken();
        }

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

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

        double nextDouble() {
            return Double.parseDouble(next());
        }

        String nextLine() {
            String str = "";
            try {
                str = br.readLine();
            } catch (IOException e) {
                e.printStackTrace();
            }
            return str;
        }
    }

    public static void main(String[] args) {
        FastReader sc=new FastReader();
        int p=sc.nextInt();
         int n=p%10;
        if ( n==2 || n==4 || n==5 || n==7 || n==9 )
            System.out.println("hon");
        else if ( n==0 || n==6 || n==1 || n==8 )
            System.out.println("pon");
        else System.out.println("bon");
    }


} public class  Main {
//    static long dp[][];
//    static int n;
//    static int a[];
//    static int ans[];

    static class FastReader {
        BufferedReader br;
        StringTokenizer st;


        public FastReader() {
            br = new BufferedReader(new InputStreamReader(System.in));
        }

        String next() {
            while (st == null || !st.hasMoreElements()) {
                try {
                    st = new StringTokenizer(br.readLine());
                } catch (IOException e) {
                    e.printStackTrace();
                }
            }
            return st.nextToken();
        }

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

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

        double nextDouble() {
            return Double.parseDouble(next());
        }

        String nextLine() {
            String str = "";
            try {
                str = br.readLine();
            } catch (IOException e) {
                e.printStackTrace();
            }
            return str;
        }
    }

    public static void main(String[] args) {
        FastReader sc=new FastReader();
        int p=sc.nextInt();
         int n=p%10;
        if ( n==2 || n==4 || n==5 || n==7 || n==9 )
            System.out.println("hon");
        else if ( n==0 || n==6 || n==1 || n==8 )
            System.out.println("pon");
        else System.out.println("bon");
    }


} Main

import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStreamReader;
import java.util.StringTokenizer;

//BufferReader
public class  Main {
//    static long dp[][];
//    static int n;
//    static int a[];
//    static int ans[];

    static class FastReader {
        BufferedReader br;
        StringTokenizer st;


        public FastReader() {
            br = new BufferedReader(new InputStreamReader(System.in));
        }

        String next() {
            while (st == null || !st.hasMoreElements()) {
                try {
                    st = new StringTokenizer(br.readLine());
                } catch (IOException e) {
                    e.printStackTrace();
                }
            }
            return st.nextToken();
        }

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

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

        double nextDouble() {
            return Double.parseDouble(next());
        }

        String nextLine() {
            String str = "";
            try {
                str = br.readLine();
            } catch (IOException e) {
                e.printStackTrace();
            }
            return str;
        }
    }

    public static void main(String[] args) {
        FastReader sc=new FastReader();
        int p=sc.nextInt();
         int n=p%10;
        if ( n==2 || n==4 || n==5 || n==7 || n==9 )
            System.out.println("hon");
        else if ( n==0 || n==6 || n==1 || n==8 )
            System.out.println("pon");
        else System.out.println("bon");
    }


}