is my code for the below question correct? please help me

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;

namespace ConsoleApplication3
{
    class Program
    {
        static void Main(string[] args)
        {
            Console.WriteLine("Enter the range and numbers:");
            int n=Int32.Parse(Console.ReadLine);
            int a[n]=Int32.Parse(Console.ReadLine);
            do{
                n=0;
                Console.Write(_a[n]);
                n++;
            }while(a[n]!=42);
        }
    }
}