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

Read also:

• US Food and Drug Administration Launches AI Platform to 'Modernize' Agency - Decrypt
• Iconic ‘90s Actress, 52, Flaunts Figure in Black Swimsuit While Yachting - parade.com
• Milwaukee-area family suing Children's Wisconsin after daughter's brain donation was lost - Milwaukee Journal Sentinel
• SpaceX fires up Super Heavy booster ahead of Starship's 10th test flight (video) - Space
• Why won't Canada build their own fighter jet?
• Record-breaking cosmic structure discovered in colossal galaxy cluster - Phys.org
• Samsung closed the One UI 8 beta to new users in the US after barely a day - 9to5Google
• Why is America so fucked up?
• What are the strangest feeding mechanisms found in sea creatures?
• LSU averts disaster, rallies back from 4-run deficit to beat Little Rock and advance to super regionals - NOLA.com