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

Read also:

• How should one handle a situation where they suspect their partner of cheating, but their partner denies it and claims it is all in their head?
• Why is Iceland donating its entire artillery to Ukraine, leaving it defenseless against any invasion?
• Is a light therapy mask a good investment?
• American Airlines sent a plane from the US to Italy that was too big for its destination airport and wasn't allowed to land - Business Insider
• Retinal prosthesis woven from tellurium nanowires partially restores vision in blind mice - Phys.org
• 'Happy Days' star Henry Winkler took Marlee Matlin in after difficult relationship with William Hurt - AOL.com
• Samsung Nears Wide-Ranging Deal With Perplexity for AI Features - Bloomberg.com
• Has anyone ever read The Holy Bible completely through? If so, what was your overall impression of it?
• A cautious culture cost Novo Nordisk its lead in the obesity drug race, former employees say - statnews.com
• 5 foods to consume empty stomach to stabilize blood sugar levels naturally - Times of India
• Fans Swoon Over ‘Still Smokin Hot' ’80s Singer, 64, As Band Reunites for the First Time in 40 Years - Yahoo
• Have you ever had a scary dream about a loved one or friend soon after their death?