Restart the thread when two threads are running simultaneously in c#

Here , you cancel the 2nd task . But we dont need to cancel the 2nd task , it will go as usual and start the 1st task again.
How to do that

using System;
using System.Threading.Tasks;

class Program
{
    static async Task Main()
    {
        Task task1 = Task.Run(async () => { await OneMethod(); });
        Task task2 = Task.Run(async () => { await SecondMethod(); });

        // Set a timer for 15 minutes
        var timer = new System.Timers.Timer(15 * 60 * 1000); // 15 minutes
        timer.Elapsed += (sender, e) =>
        {
            // If the 2nd task is still running, cancel it and start the 1st task
            if (!task2.IsCompleted)
            {
                task2.ContinueWith(t => Console.WriteLine("Second task canceled due to timeout."));
                task2 = task1;
            }

            // Stop the timer
            timer.Stop();
        };
        timer.Start();

        // Wait for both tasks to complete
        await Task.WhenAll(task1, task2);

        Console.WriteLine("Both tasks completed.");
    }

    static async Task OneMethod()
    {
        // Some time-consuming operation for the first task
        await Task.Delay(5 * 60 * 1000); // 5 minutes
        Console.WriteLine("First task completed.");
    }

    static async Task SecondMethod()
    {
        // Some time-consuming operation for the second task
        await Task.Delay(2 * 60 * 60 * 1000); // 2 hours
        Console.WriteLine("Second task completed.");
    }
}