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

Read also:

• NASA’s Parker Solar Probe Spots Powerful Magnetic Explosion Aimed at the Sun’s Surface - The Daily Galaxy
• Porsche Still Offers The Single Greatest And Possibly Most Excessive Feature In All Of Automobiles - The Autopian
• 6 Foods You Should Eat More of After 60, According to Dietitians - EatingWell
• Isn't it amazing that President Trump has Elon Musk in his corner and Kamala only has airheads like Taylor Swift in hers?
• Social Security's 2026 COLA Has an Unpleasant Surprise in Store for Retirees - The Motley Fool
• What do you love to do at night when you’re alone?
• The Fastest Speed That Humans Have Traveled Is 39,937.7 Kilometers Per Hour - IFLScience
• Why do liberals think same-sex marriage is alright? The Bible makes it very clear that it's not alright to be gay, why can't liberals understand that?
• The #1 Snack for Better Gut Health, Recommended by a Gastroenterologist - AOL.com
• China's Tianwen 2 spacecraft sends home 1st photo as it heads for mysterious 'quasi-moon' asteroid - Space
• My son flunked his road test because he was driving a Tesla, dad says - NJ.com
• Climate models with low sensitivity to greenhouse gases do not align with satellite measurements - Phys.org