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

Read also:

• What do flat earthers think about Antarctica?
• Apple’s leaked 45W MagSafe charger is first to support Qi2.2 - The Verge
• What should I do if a girl whom I love asks me to be her friend?
• WWE Money in the Bank results: Powell's review of John Cena and Logan Paul vs. Jey Uso and Cody Rhodes, two MITB ladder matches, Lyra Valkyria vs. Becky Lynch for the Women's Intercontinental Title - Pro Wrestling Dot Net
• What are the differences between fuzzy, intuitionistic, and paraconsistent logic? Which one is considered the most useful and why?
• A closer look at the striking metamorphosis of Tyrese Haliburton - NBA
• Do "flat-earthers" attempt to sail around the world to prove their theory? Would this support their belief in a flat Earth?
• Tom Hanks finally breaks his silence on daughter’s bombshell memoir: ‘Not surprised’ - New York Post
• Scientists find 34-million-year-old snake that changes our understanding of evolution - Earth.com
• What do you think about Matt Gatz as an attorney general?
• SSRIs Restore Brain Function in Alzheimer’s - Neuroscience News
• Trump-Musk feud leaves some DOGE staffers worried about their futures: Sources - ABC News
• Why do creationists ask for proof of evolution and then ignore the answers?
• Why did McLaren hope that the Ferrari pair would pit twice during the Italian Grand Prix?
• Exclusive: Clean energy investment hits new highs and shows no sign of slowing - TechCrunch