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

Read also:

• Why is my crush beautiful to me but not to others?
• What would have happened if Shin was a good movie instead of a bad one?
• This hidden Android feature was a lifesaver when my home internet died — here's how it works - Tom's Guide
• What did your sister do to you that you can never forget?
• Does the interpretation of the Book of בראשית create in all generations the Chosen Cohen People יש מאין?
• ‘Everybody Loves Raymond’ Star Brad Garrett Says the Sitcom Will ‘Never’ Be Rebooted: ‘There Is No Show Without the Parents’ - Variety
• What are some tips for braiding a woman's hair on a date?
• NASA sets new potential launch date for Ax-4 mission to ISS - SpaceNews
• Do you think cheating is that bad?
• Common herbal supplement used to beat stress linked to liver toxicity - Times of India
• How do scientists behave?