Async Tasks In Console App

using System.IO;
using System;
using System.Collections.Generic;
using System.Collections.Concurrent;
using System.Threading;
using System.Threading.Tasks;

class Program
{
    static void Main()
    {
        Console.WriteLine("Tasks...");
        
        StartTasks().GetAwaiter().GetResult();
        
        
        Console.WriteLine("End");
    }
    
    
   static List<Task<bool>>  _tasks=new List<Task<bool>>();
    
    
    private async static Task StartTasks(int count=10)
    {
        
        for(var i=1;i<=count;i++)
        {
            _tasks.Add(DoTask(i,i*3));        
        }
        
        
        try
        {
            
            await Task.WhenAll(_tasks);
        }
        catch(Exception ex)
        {
            Console.WriteLine(ex.Message);
        }
        
        
        
    }
    
    private async static Task<bool> DoTask(int no,int runCount=10)
    {
        
        var x=1;
        
        while(true)
        {
            
            try
            {
                
                Console.WriteLine($"{no} - doing some tasks..." + x);
                await Task.Delay(1000*1);
                
            }
            catch(OperationCanceledException)
            {
                break;
            }
            catch(Exception ex)
            {
                Console.WriteLine(ex.Message);
            }
            
            x++;
            
            if(x>=runCount) break;
        }
        
        
        return true;
        
        
    }
    
    
}