using System;

public class Program

{

    public static void Main()

    {

        Console.Write("Input the number of elements in first array: ");

        int elems;

        if(int.TryParse(Console.ReadLine(), out elems)){

            Console.WriteLine("Input "+elems+" integers into the array: ");

            int[] arr = new int[elems];

            for(int i = 0; i<arr.Length;i++){

                Console.Write("element - "+i+" : ");

                int input;

                if(int.TryParse(Console.ReadLine(), out input)){

                    arr[i] = input;

                }else{

                    Console.WriteLine("Invalid input");

                    break;

                }

            }

            int elems2;

            Console.Write("Input the number of elements in second array: ");

            if(int.TryParse(Console.ReadLine(), out elems2)){

            Console.WriteLine("Input "+elems2+" integers into the array: ");

            int[] arr2 = new int[elems2];

            for(int i = 0; i<arr2.Length;i++){

                Console.Write("element - "+i+" : ");

                int input2;

                if(int.TryParse(Console.ReadLine(), out input2)){

                    arr2[i] = input2;

                }else{

                    Console.WriteLine("Invalid input");

                    break;

                }

            }

            int[] mergArr = new int[elems+elems2];

        }else{

            Console.Write("Invalid input");

        }

    }

    }

}