Updating progress on the screen problem

    public static async Task<long> CalculateSumAsync(int n, CancellationToken token, IProgress<(int, long)>? progress = null)
    {
        if (n <= 0)
        {
            throw new ArgumentOutOfRangeException(nameof(n));
        }

        long result = 0;

        var res = await Task.Run(() =>
        {
            for (var i = 1; i <= n; i++)
            {
                result += i;

                token.ThrowIfCancellationRequested();

                progress?.Report((i, result));
            }

            return result;
        });

        return res;
    }

        progress.ProgressChanged += (sender, tuple) =>
        {
            latestProgress = tuple;
            Console.WriteLine($"index: {latestProgress.progressValue}    progress: {latestProgress.progressLong}");
        };