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

Read also:

• Why do British people always write "xxx" after their names?
• NASA is launching a $488 million mission with its new telescope, which is expected to provide a lot of data. - Farmingdale Observer
• The players who will dominate MLB trade deadline rumors — and how likely it is they’ll be moved - New York Post
• What are rare earth minerals, and why are they central to Trump’s trade war? - CNN
• Utah woman loses 100 pounds in one year: Here's how - KSL News
• I am 11 years old and I think I am going through puberty. Why do my nipples hurt when I touch them? Is it normal?
• SpaceX marks 500th Falcon launch with Starlink 11-22 Mission - Teslarati
• How does Bollywood influence Indian culture?
• How did your marriage end?
• Was Michael Jackson really an innocent person?
• New Pill Slashes “Bad” Cholesterol and Heart Attack Risk in Just 12 Weeks - SciTechDaily
• The Tech Industry Said It Was "Impossible" to Create AI Based Entirely on Ethically-Sourced Data, So These Scientists Proved Them Wrong in Spectacular Fashion - futurism.com
• Heroes of the Storm Live Patch Notes - June 2, 2025 - Blizzard News
• What are some common historical misconceptions?