using System;
using System.Text.RegularExpressions;

public class Test
{
	public static void Main()
	{
		string pattern = @"(?i)/containers(/[^/]+)/blobs(/[^""/]+)"",""eventtype""";
		Regex r = new Regex(pattern);
        string input = @"resgrp/providers/Microsoft.Storage/storageAccounts/vvvvvdgdevstor"",""subject"":""/blobServices/default/containers/coloradohhhhready/blobs/README_.._.hl7"",""eventType"":""Microsoft.Storage.BlobCreated"",""eventTime"":""2019-06-19T17:28:40.3136657Z"",""id"":""604ad6c5a0145-04c4-26bsssss26a"",""data"":{""api"":""PutBlockList"",""clientRequestId"":""aaaaaaae-4e68-95f6-c1ssssb02f""";
        Match m = r.Match(input);
        Console.WriteLine(m.Groups[1].Value + m.Groups[2].Value);
	}
}