// z1.2.2-basic-input
//
#include <iostream>
using namespace std;

int main() {
  int dogYears;
  int humanYears;

  cin >> dogYears;
  humanYears = 7 * dogYears;

  cout << "A ";
  cout << dogYears;
  cout << " year old dog is about a ";
  cout << humanYears;
  cout << " year old human.";
  cout << endl;

  return 0;
}