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

Read also:

• What is the best comeback you used on someone?
• Mission Control: Eye of the Storm - NASA (.gov)
• “I Mapped the Invisible”: American High School Student Groundbreaking AI Reveals 1.5 Million Space Objects Previously Hidden from Astronomers - Indian Defence Review
• Cher’s Son Elijah Blue Allman Hospitalized After ‘Acting Erratically’ - Rolling Stone
• Today's Supreme Court Decision on Age Verification Tramples Free Speech and Undermines Privacy - Electronic Frontier Foundation
• New COVID-19 variant detected in Washington state. Here’s what to know - The Seattle Times
• Has anyone ever really waited that long and gotten a paper check mailed 20 days ago?
• iPhone 17 Base Model Rumored to Feature Larger Display - MacRumors
• Why cant I feel anything in my sleep? I cannot even feel myself moving, breathing, and swallowing saliva! I cannot even hear anything, not even my alarm! Some people that I've been with says that I'm moving a lot in my sleep, how can I stop it?
• Inhibitory Neurons May Hold the Key to Spatial Learning and Memory - Neuroscience News
• Indiana Pacers star Tyrese Haliburton suffered a torn right Achilles tendon in Game 7 of NBA Finals, per multiple reports - CNN