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

Read also:

• A hidden 'super-Earth' exoplanet is dipping in and out of its habitable zone - Space
• Why is it rare for someone to despise both the Democrats and Republicans?
• Bitcoin Price, XRP Fall. The House Just Introduced a New Crypto Bill. - Barron's
• Why did my 2001 4.6 liter Mustang GT V8 make "only" 260 HP while today's base Dodge 3.6 liter V6 churns out almost 300 HP? Both benefit from fuel injection and ECUs.
• Junk Food Alert: Our Bodies Treat Ultra-Processed Foods Like Foreign Invaders! - Glass Almanac
• Japan Is Ready to Fight a $385 Billion Annual Polluting Beast by Offering a Greener Alternative to Traditional Cement - The Daily Galaxy
• Part toy, part fashion, the arrival of the viral Labubu was a long time in the making - AP News
• 401(k) millionaires fell in the first quarter — but it’s not all bad news - MarketWatch
• What do men like to be given for their birthday?
• Royals calling up red-hot top prospect Jac Caglianone less than year after being drafted - New York Post
• One Of The Rarest Video Games Ever Has Been Preserved Online - GameSpot