What is the sum of X+XX+XXX+XXXX?

Read also:

• What are some funny and smart quotes?
• How far does good behavior take you in a prison?
• How the Brain Actively Removes Unwanted Memories - Neuroscience News
• Can you give an example of a documentary where the person telling the story believed it to be true, but it turned out to be false?
• Who is someone that inspires you?
• Is the Philippines PH a poor 3rd world or 4th world country forever and forever?
• What is some information about unprotected sex and pregnancy?
• 'AI Godfather' Warns Superintelligent Machines Could Kill Off Humans With Biowarfare - Decrypt
• Where and how did ballet originate?
• Are there any guys, crossdressers, or transgender girls here who wear tampons?
• Why is Matt Gaetz being investigated but not Sarah (Tim) McBride? Why do we only care about grooming when it's the Republicans doing it?
• I live in Massachusetts. Are there any resources here for people that are being harassed by voice to skull, etc.?
• What do you think will be the biggest factor in determining whether Daniel Penny was justified in believing that Jordan Neely had posed a deadly threat in the manslaughter trial?