/******************************************************************************
 * This program converts dog years to human years.
 * 
 * Copyright © 2020 Richard Lesh.  All rights reserved.
 *****************************************************************************/

import org.pureprogrammer.Utils;

public class DogYearsCmdLine {

    static final int HUMAN_YEARS_PER_DOG_YEAR = 7;

    public static void main(String[] args) {
        int dogYears = Utils.stoiWithDefault(args[0], 0);
        int humanYears = dogYears * HUMAN_YEARS_PER_DOG_YEAR;
        System.out.println(Utils.join("", dogYears, " dog years = ", humanYears, " human years"));
    }
}