#include <bits/stdc++.h>
int main() {
  char N[1001];
  gets(N);
  char last = N[strlen(N) - 1];
  printf("Last digit: %c", last);
  printf("\n");
  if (last == 2 || last == 4 || last == 5 || last == 7 || last == 9) {
    printf("hon");
  } else if (last == 0 || last == 1 || last == 6 || last == 8) {
    printf("pon");
  } else {
    printf("bon");
  }
  return 0;
}
