using System;
using System.IO;

internal class BinaryFileReader
{
    private static int sum1;
    private static int sum2;

    public BinaryFileReader(string path)
    {
        using FileStream fileStream = File.Open(path, FileMode.Open, FileAccess.Read);
        using BinaryReader binaryReader = new BinaryReader(fileStream);

        while (true)
        {
            try
            {
                sum1 += binaryReader.ReadInt16();
            }
            catch (Exception)
            {
                break;
            }
        }
        fileStream.Seek(0, SeekOrigin.Begin);

        while (true)
        {
            try
            {
                sum2 += binaryReader.ReadInt32();
            }
            catch (Exception)
            {
                break;
            }
        }
    }

    public int GetDifference()
    {
        return Math.Abs(sum1 - sum2);
    }
}