User talk:1.38.164.113

Hello, I'm David Eppstein. I wanted to let you know that one or more of your recent contributions to Cuboid have been undone because they did not appear constructive. If you would like to experiment, please use the sandbox. If you have any questions, you can ask for assistance at the help desk. Thanks. —David Eppstein (talk) 18:20, 8 February 2020 (UTC)

July 2020
Please refrain from making unconstructive edits to Wikipedia, as you did at Quark. Your edits appear to constitute vandalism and have been reverted. If you would like to experiment, please use the sandbox. Repeated vandalism may result in the loss of editing privileges. Thank you. Favonian (talk) 11:19, 23 July 2020 (UTC)