[REQ] Very Simple Twitter Bot Request

I want to a very simple bot.

Bot's Tasks
1. first go to twitter.com
2. fill all forms (username and password)
3. click login
4. add a random tweet
5. delete tweet
6. go to direct messages page on twitter
7. then logout from twitter
8. now change proxy and again login to twitter
9. loop....

who can make a bot like this with webBrowser control in C#.NET?

it will be great example for me...

help me please. I really need it