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

Read also:

• I'm a 27 year old male currently but I am going through going through gender dysphoria. Why do some transgender people (specifically transgender women since I see that the most) call themselves trannies or shemales? Aren't those offensive words?
• Is there any concrete proof that LED face masks actually work?
• Have you ever lied to your family? What were the circumstances?
• What is the recommended approach for creating a film or TV script? Should the script be written first or should the story be developed first? Why?
• What is the best sunscreen recommended by dermatologists in India for oily skin?
• It’s back! Massive $400 price drop now live on 2TB Space Black M4 iPad Pro at Amazon - 9to5Toys
• Matching dinosaur footprints found on opposite sides of the Atlantic Ocean, answering a very old question - Earth.com
• How do you recognize when your mental health might need attention?
• How or where can I get any kind of books online for free?
• NASA is already great. Right now. - NASA Watch
• Why climbing the stairs can be good for your body and brain - BBC
• Is it possible to remove producers’ voice tags or vocals from a beat (like purchase your track today)?
• The two rules investors need to follow right now as the S&P 500 eyes a return to 6,000 - MarketWatch