/*  UntilDeathDoesUsApart
    DO   NOT   GIVE   UP!
*/

#include <bits/stdc++.h>

using namespace std;

#define inc(a)           a.begin(), a.end()
#define dec(a)           a.rbegin(), a.rend()
#define Unique(n)        (n).erase(unique(in(n)), (n).end())
#define what_is(x)       cerr << #x << " is " << x << '\n';
#define to(i, a, n)      for(int i=a; i<n; i++)
#define fr(i, a, n)      for(int i=a; i>=n; i--)
#define read(arr, l, r)  for(int i=l; i<r; cin >> arr[i++])
#define prnt(arr, l, r)  for(int i=l; i<r; cout << arr[i++] << " \n"[i==r])

typedef long long ll;
typedef long double ld;

int main(){
    ios_base::sync_with_stdio(0);
    cin.tie(0), cout.tie(0);

    int n;
    n %= 10;

    if(n==2 || n==4 || n==5 || n==7 || n==9)
        cout << "hon";
    else if(!n || n==1 || n==6 || n==8)
        cout << "pon";
    else cout "bon";

    return 0;
}
