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

Read also:

• At what point did you realize it was the right time to leave your job?
• Gina Ortiz Jones, a Progressive, Is Elected San Antonio’s Mayor - The New York Times
• How AI Mode and AI Overviews work based on patents and why we need new strategic focus on SEO - Search Engine Land
• Poop Transplants Not All They’re Cracked Up to Be - Gizmodo
• What is the recipe for making a turmeric and ginger drink?
• “Intelligence Evolved Twice on Earth”: This Groundbreaking Discovery Redefines Life Itself and Shakes the Foundations of Evolutionary Science - Rude Baguette
• Proposed NASA radio probe could use gravity 'lumpiness' to reveal the insides of alien worlds - Space
• What would happen if Kakashi and Naruto switched places?
• Bacteria living in your gut may cause depression, not your brain, says a new study - Earth.com
• Why does Africa have all mineral resources but she is suffering economically?
• Super Again: UNC Storms Past Oklahoma in NCAA Regional Finale - 247Sports
• Kate Beckinsale Sues Over Knee Injury on Croatian Set of ‘Canary Black’ - Variety
• What everyday objects become surprisingly challenging to use in zero gravity?