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

Read also:

• Adventure Calls from the Lost City of Un’Goro, Hearthstone’s Next Expansion - Blizzard Entertainment
• Why does my vagina smell sort of fishy/musty days after sex when my boyfriend ejaculates in me? There isn’t any itching or burning when urinating, so I don't think I have BV. It just doesn't smell like me.
• Super-Earth discovered in habitable zone of sun-like star via TTV technique, paving way for 'Earth 2.0' searches - Phys.org
• In the search for signs of life on Mars, Perseverance reaches a crucial rock site. - Farmingdale Observer
• How good do you sing and how do you know this?
• What steps can be taken to track down a scammer and determine their location?
• United-JetBlue Tie Up Leaves American Airlines Bloodied - Live and Let's Fly
• Heads up! Midnight 16GB 13-inch M4 MacBook Air just dropped again to $800 all-time low ($199 off) - 9to5Toys
• Why do so many guys love anime girls?
• Is homosexuality an excommunicable offense in Christianity?
• Nintendo releases more Switch 1 game updates to improve Switch 2 compatibility - Nintendo Everything
• Your chatbot friend might be messing with your mind - The Washington Post