#include <bits/stdc++.h>
int main(void) {
  int i, N;
  for (N = 1; N <= 999; N++) {
    printf("N:");
    scanf("%d", &N);
  }
  if ((N % 10 == 2) || (N % 10 == 4) || (N % 10 == 2) || (N % 10 == 5) ||
      (N % 10 == 7) || (N % 10 == 9)) {
    printf("hon\n");
  } else if ((N % 10 == 0) || (N % 10 == 1) || (N % 10 == 6) || (N % 10 == 8)) {
    printf("pon\n");
  } else if (N % 10 == 3) {
    printf("bon\n");
  }
  return 0;
}
