using System;

public class Program

{

    public static void Main()

    {

            string[,,] numbers = new string[2,2,3]

            { 

                {

                    {"Baz","19","Blue eyes"},

                    {"Bill","20","Brown eyes"}

                },

                {

                    {"Charlie","21","Green eyes"},

                    {"Caroline","22","Blue eyes"}

                }

​

            };

​

            //1. Output Charlie's Name

            //2. Output Brown eyes

            //3. Output Caroline's Age

            //4. Add together the ages of Baz, Bill, Charlie and Caroline using Iteration

            //5. Find the average age of each page of people i.e. Baz and Bill, Charlie and Caroline, using Iteration

            //6. Find the average age of all of the people using Iteration

        //1

        Console.WriteLine(numbers[1,0,0]);

        //2

        Console.WriteLine(numbers[0,1,2]);

        //3

        Console.WriteLine(numbers[1,1,1]);

        //4

        var ageSum = 0;

        for(int i = 0; i < 2; i++) {

            for(int j = 0; j < 2; j++) {

                ageSum += Convert.ToInt32(numbers[i, j, 1]);

            }

        }

        Console.WriteLine(ageSum);

        //5

        for(int i = 0; i < 2; i++) {

            var localAgeSum = 0;

            for(int j = 0; j < 2; j++) {

                localAgeSum += Convert.ToInt32(numbers[i, j, 1]);

            }

            Console.WriteLine(localAgeSum / 2);

        }

        //6

        var avg = ageSum / 4;

        Console.WriteLine(avg);

    }

}