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

Read also:

• This moon in the solar system continues to surprise scientists with the discovery of alternating water forms on its surface. - Farmingdale Observer
• Which album is your favorite that's now 50 years old (from 1975), and what's the best song on the album?
• Have you ever had a bad gut feeling about someone and it was right?
• Harvard gastroenterologist ranks popular trends: Is eating cold rice, doing intermittent fasting good for gut health? | Health - Hindustan Times - Hindustan Times
• What are some best sources of great porn?
• Why is dating so frustrating and difficult for a guy?
• Atheists who have read the Bible and think that contains immoral things, why do you assume that?
• A Mix of These Specific Foods Could Help You Avoid Chronic Disease - ScienceAlert
• This email app is Gmail on steroids, and I can't recommend it enough - Android Police
• ‘How to Train Your Dragon’ soars in box office debut with $83.7 million, beating ‘Lilo & Stitch’ - AP News
• Fallout meets BioShock in fascinating new adventure game - GAMINGbible
• King Charles Shares Super Rare Photo With Late Father Prince Philip - AOL.com