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

Read also:

• Ireland added to list of countries monitored by the U.S. for currency manipulation - Fortune
• Why doesn't speeding significantly decrease one’s commute time? I've done a lot of road trips and driving and have experimented by increasing speed by 10–20%, but somehow this never equates to arriving 20% sooner, even on clear roads.
• If our normal body temperature is 98.6 degrees Fahrenheit, why do we perceive weather in the 90s as "hot?"
• Early visions of Mars: Meet the 19th-century astronomer who used science fiction to imagine the red planet - The Conversation
• What are you wearing under your clothes today?
• Apple drops a spot on 2025 Fortune 500 list - 9to5Mac
• You Can Own This Ultra-Rare Italian Viper - Motor1.com
• What makes Nigerian scammers skilled at impersonating people? Is their success a result of intelligence or other factors?
• Unclear if rock bottom, but Braves hit it anyway in 11-10 stunner loss - Battery Power
• Trans athlete embraced as California track and field champion by peers while adult activists duel - San Francisco Chronicle
• Scientists: We Built 'World's Smallest Violin' - Newser
• What is your opinion? I am 150-152 and I feel short. I’m 15 years old. I feel like this makes me look like a baby and ugly on most clothes.