Closest number

using System;

namespace ForumHelp
{
    class ClosestValue
    {
        static void Main()
        {
            int valueX = int.Parse(Console.ReadLine());
            int rangeN= int.Parse(Console.ReadLine());

            int minDiff = int.MaxValue;
            int index = 0;
            int searchedValue = 0;

            for (int i = 1; i <= rangeN; i++)
            {
                int currentNum = int.Parse(Console.ReadLine());
                int difference = Math.Abs(currentNum - valueX);

                if (difference < minDiff)
                {
                    minDiff = difference;
                    searchedValue = currentNum;
                    index = i;
                }
            }

            Console.WriteLine($"Closest number to {valueX} is {searchedValue} and its number is: {index}");
        }
    }
}