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

Read also:

• BBC Stands By Newsreader Who Corrected Autocue From “Pregnant People” To “Women” - Deadline
• * Underwater Smoke Signals: Humpbacks May Be Talking to Humans - SciTechDaily
• Dow Jones Futures Rise, Broadcom Falls After Tesla Crashes On Musk-Trump Feud - Investor's Business Daily
• Is there a reason why many men give up on dating and relationships? Is the dating scene difficult for them?
• How can we become the best humans? How can we trust each other?
• Marco Rubio sanctions ICC for targeting US and Israel - BBC
• Fed interest rate decision looms as battle over cuts takes surprising turn - TheStreet
• Do straight guys like to have sex with men when they smoke meth?
• Epidemiological update: SARS-CoV-2 and NB.1.8.1 variant assessment - European Centre for Disease Prevention and Control
• Why Elon Musk's satellites are 'dropping like flies' - Yahoo
• Neuroimaging study suggests mindfulness meditation lowers sensory gating - PsyPost
• Most freshwater game fish in Southern California carry invasive parasites capable of infecting humans, study finds - Phys.org
• Job openings rise in middle of trade wars, but businesses are slower to hire - MarketWatch
• 11 confirmed dead after flooding, identities of three victims released - WOAI
• Justin Tucker hopes to thread needle between claiming innocence, accepting responsibility - NBC Sports