User talk:82.2.220.19

Please refrain from making unconstructive edits to Wikipedia, as you did with this edit at Spiral model. Your edits appear to constitute vandalism and have been blocked by an edit filter. If you would like to experiment, please use the sandbox. Repeated vandalism can result in the loss of editing privileges. Thank you. Tornado chaser (talk) 18:39, 6 June 2017 (UTC)