using System;

namespace person

{

​

public class Program

 {

    public static void Main(string[] args)

    {

        Console.WriteLine( " who many person ?") ;

        var i= Convert.ToByte(Console.ReadLine());

        Person[] person= new Person[i];

        for (int j=0; j<i; j++)

        {

                Console.WriteLine( " Enter person" + (j+1)   );

                Console.WriteLine("===================");

            Person st= new Person();

            st.Id= j+1;

            Console.Write(" Name: ? ");

            st.name= Console.ReadLine();

            Console.WriteLine(" Family:");

            st.family= Console.ReadLine();

            Console.WriteLine(" Age:" );

            st.age= Convert.ToByte( Console.ReadLine());

            st.agecategory= AgeRanker(st.age);

            person[j]= st;

            Console.WriteLine(st.name + " " + st.family + "recorded");

            Console.Clear();

        }

        Console.WriteLine("==============");

        Console.WriteLine(" Person Table" );

        Console.WriteLine("==============");

        foreach (var item in person)

        {

            Console.WriteLine("/" + item.name + "/" + item.family+ "/"+ item.agecategory+ "/");

        }

    }

      public static string  AgeRanker(byte age)

    {

        if (age<1)

        {

            return "infant";

        }

        if (age>=1 && age< 12)

        {

            return "child";

        }

        if (age >=12 && age<18)

        {

            return "teenager";

        }

        if (age >=18 && age<65)

        {

            return "adult";

        }

        else

        { 

            return "old";

        }

    }

    }       

}       

    public class Person

{

    public int Id;

    public string name;

    public string family;

    public byte age;

    public string agecategory;

}

​

​