namespace FileSizeCalculator
{
    class Program
    {
        static async Task Main(string[] args)
        {

            Console.WriteLine("Enter directory paths separated by commas:");
            string input = Console.ReadLine();
            List<string> directoryPaths = new List<string>(input.Split(','));

            long[] sizes = await GetTotalSizeAsync(directoryPaths);
            long totalSize = sizes.Sum();


            Console.WriteLine($"Total number of files: {GetFileCount(directoryPaths)}");
            Console.WriteLine($"Total size of files (bytes): {totalSize}");
        }

namespace FileSizeCalculator
{
    class Program
    {
        static async Task Main(string[] args)
        {

            Console.WriteLine("Enter directory paths separated by commas:");
            string input = Console.ReadLine();
            List<string> directoryPaths = new List<string>(input.Split(','));

            long[] sizes = await GetTotalSizeAsync(directoryPaths);
            long totalSize = sizes.Sum();


            Console.WriteLine($"Total number of files: {GetFileCount(directoryPaths)}");
            Console.WriteLine($"Total size of files (bytes): {totalSize}");
        }

   static async Task<long> GetTotalSizeAsync(List<string> directoryPaths)
        {
            long totalSize = 0;


            await Task.WhenAll(directoryPaths.Select(async directoryPath =>
            {

                string[] files = await Task.Run(() => Directory.GetFiles(directoryPath));
                foreach (string file in files)
                {
                    totalSize += await GetFileSizeAsync(file);
                }
            }));

            return totalSize;
        }

        static int GetFileCount(List<string> directoryPaths)
        {
            int totalFileCount = 0;


            foreach (string directoryPath in directoryPaths)
            {

                string[] files = Directory.GetFiles(directoryPath);
                totalFileCount += files.Length;
            }

            return totalFileCount;
        }
    }
}

   static async Task<long> GetTotalSizeAsync(List<string> directoryPaths)
        {
            long totalSize = 0;


            await Task.WhenAll(directoryPaths.Select(async directoryPath =>
            {

                string[] files = await Task.Run(() => Directory.GetFiles(directoryPath));
                foreach (string file in files)
                {
                    totalSize += await GetFileSizeAsync(file);
                }
            }));

            return totalSize;
        }

        static int GetFileCount(List<string> directoryPaths)
        {
            int totalFileCount = 0;


            foreach (string directoryPath in directoryPaths)
            {

                string[] files = Directory.GetFiles(directoryPath);
                totalFileCount += files.Length;
            }

            return totalFileCount;
        }
    }
}