Homework 5 Problem 5

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

namespace Problem_5_ThirdDigitIs7
{
    class ThirdDigitIs7
    {
        static void Main()
        {
            Console.Write("Enter the integer number: ");
            int n = int.Parse(Console.ReadLine());
            string nStr = n.ToString();

            if (nStr.Length >= 2)
            {


                if (nStr[nStr.Length - 3] == '7')
                {
                    Console.WriteLine("true");
                }
                else
                {
                    Console.WriteLine("false");
                }
            }
            else
            {
                Console.WriteLine("false");
            }
        }
    }
}