User talk:100.12.187.158

May 2020
Please stop your disruptive editing. If you continue to vandalize Wikipedia, as you did at Contour drawing, you may be blocked from editing. CLCStudent (talk) 19:15, 15 May 2020 (UTC)
 * If this is a shared IP address, and you did not make the edits referred to above, consider creating an account for yourself or logging in with an existing account so that you can avoid further irrelevant notices.