
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 n=sc.nextInt();
        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");
    }


}