C# ( c sharp )

using System.Collections;
using System.Collections.Generic;

namespace ConsoleApp1
{
    public static class Program
    {
        public static void Part1()
        {
            var lines = File.ReadAllLines("C:\\Users\\aman\\RiderProjects\\ConsoleApp1\\ConsoleApp1\\input.txt");
            var dialReading = 50;
            int result = 0;
            foreach (var line in lines)
            {
                if (dialReading == 0)
                {
                    result += 1;
                }
                char dir = line[0];
                int rotation =  int.Parse(line.Substring(1));
                if (dir == 'R')
                {
                    dialReading += rotation;
                    dialReading %= 100;
                }
                else
                {
                    int diff = dialReading - rotation;
                    if (diff > 0)
                    {
                        dialReading -= rotation;
                        dialReading %= 100;
                    }
                    else
                    {
                        dialReading = dialReading + 100 - rotation;
                        dialReading %= 100;
                    }
                }
            }

            Console.WriteLine(result);
        }

        public static void Part2()
        {
            var lines = File.ReadAllLines("C:\\Users\\aman\\RiderProjects\\ConsoleApp1\\ConsoleApp1\\input.txt");
            var dialReading = 50;
            int result = 0;
            foreach (var line in lines)
            {
                char dir = line[0];
                int rotation =  int.Parse(line.Substring(1));
                if (dir == 'R')
                {
                    while (rotation > 0)
                    {
                        if (dialReading == 0)
                            result += 1;
                        dialReading += 1;
                        dialReading %= 100;
                        rotation -= 1;
                    }
                }
                else
                {
                    while (rotation > 0)
                    {
                        if (dialReading == 0)
                            result += 1;
                        dialReading -= 1;
                        if ( dialReading < 0)
                            dialReading += 100;
                        dialReading %= 100;
                        rotation -= 1;
                    }
                }
            }

            Console.WriteLine(result);
        }
        public static void Main(string[] args)
        {
            Part1();
            Part2();
        }
    }
}