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Prerequisites

1. Have an AWS Account
2. Spin up an EC2 Instance of Ubuntu Server and Make sure that your instance's security groups allow incoming connections on TCP ports 22 and 3000
3. Use an Elastic IP to bind your Instance to it --- You would not be paying for this -- Till the time the EC2 Instance is running
4. Add the IP Allocated to your A Record --- with your registrar
5. Have a SSH Connection to your EC2 Instance with the Key Pairs
6. Connect to the EC2 Instance

STEP 1 -- Setting up the Playground

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const f = (a: any[], b: any[]): any[] =>
    [].concat(...a.map(a2 => b.map(b2 => [].concat(a2, b2))));

export const cartesianProduct = (a: any[], b: any[], ...c: any[]) => {    
    if (!b || b.length === 0) {
        return a;
    }
    const [b2, ...c2] = c;
    const fab = f(a, b);
    return cartesianProduct(fab, b2, c2);

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using System.Collections.Generic;
using System.Diagnostics;
using System.IO;
using System.Security.Cryptography;
using Newtonsoft.Json;
using Org.BouncyCastle.Crypto;
using Org.BouncyCastle.Crypto.Parameters;
using Org.BouncyCastle.OpenSsl;
using Org.BouncyCastle.Security;

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using System;
using System.CodeDom;
using System.Collections.Generic;
using System.IO;
using System.Linq;
using System.Net;
using System.Net.Sockets;
using System.Text;
using System.Threading.Tasks;
using Amazon;

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using System;
using System.Diagnostics;
using Newtonsoft.Json;
using Shouldly;
using Xunit;

namespace json
{
    public class UnitTest1
    {

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/// <summary>
/// Search for relativePath with respect to (w.r.t.) the current directory and if it doesn't exist,
/// search w.r.t. the current parent directory, then the grandparent and so on until the path is found
/// or the root it hit. Works for files or directories.
/// </summary>        
/// <returns></returns>
public static string FindRelativePathInAncestors(string relativePath, string startDirectory)
{
    relativePath = relativePath.TrimStart(Path.DirectorySeparatorChar);
    int level = 0;

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public void ProcessList(List<Input> inputs)
{                        
            var errors = new List<Exception>();
            foreach (var input in inputs)
            {
                try
                {
                     Process(input);
                }
                catch (Exception ex)

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Quote Listing*
  New Quote -> New Quote Wizard
  Select Quote -> Estimation View Mode?  
  Search -> Quote Listing

Estimation View Mode?
  is accepted? -> Accepted Quote
  is created? -> Created Quote
  else -> Draft Quote

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Landing Page
  Create Design -> Is Logged In For New Design?
  Login -> Login Page
  Create Account -> Create Account

Is Logged In For New Design?
  yes? -> New Design
  no? -> Login Page

Login Page

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-- replace:
--  `log` with any table 
--  `id` with any index column on that table
--  81272070 with an existing value in the index column

-- in connection #1
START transaction;
select * from log where id = 81272070 FOR UPDATE;
select sleep(40);
COMMIT;