using System;

​

class Human

{

    public double weight;//field

    public double height;//field

    public string gender;//field

    public int age;

    public void print()//method

    {

        Console.WriteLine(weight + " " + height + " " + gender + " " + age);

    }

    public void run()//method

    {

        Console.WriteLine("I can run as fast as possible.");

    }

    public void swim()//method

    {

        Console.WriteLine("The best swimming style is freestyle.");

    }

}

public class Program

{

    public static void Main()

    {

        Human alan = new Human();

        alan.height = 172.2;

        alan.weight = 68.7;

        alan.gender = "male";

        alan.age = 26;

        alan.print();

        alan.run();

        Console.WriteLine("\n");

        Human kelly = new Human();

        kelly.height = 162.2;

        kelly.weight = 48.7;

        kelly.gender = "female";

        kelly.age = 25;

        kelly.print();

        kelly.run();

        kelly.swim();

    }

}