using System;

using System.Threading;

using System.Threading.Tasks;

public class Program

{

    public static void Main()

    {

    }

    public static Task WaitAnyTrue(params Task<bool>[] tasks)

    {

        var tcs = new TaskCompletionSource<bool>();

        foreach (var t in tasks) {

            t.ContinueWith(result => {

                if (result.Status != TaskStatus.RanToCompletion)

                    tcs.TrySetException(result.Exception);

                else if (result.Result)

                    tcs.TrySetResult(true);

            });

        }

        return tcs.Task;

    }

}