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

Read also:

• Costco's New Food Court Item Has Customers Divided: 'It's Offensive' - Delish
• Why are North Carolina Democrats against Mark Robinson? He is the modern Martin Luther King Jr. and the Democrats are being stupid for not voting him.
• Liquid Glass is more than skin deep on macOS Tahoe - AppleInsider
• If we do not know the name of the father of a child, e.g. a foundling, an illegitimate, etc., then to whom should the bin or the binti of the child's name be applied?
• What is Project Astra by Google?
• Ford recalls 1M vehicles over backup camera glitch - MLive.com
• Sophie Cunningham’s $1M Social Jump Dwarfs WNBA Fines - Sportico.com
• Atque nihil laudantium distinctio sapiente similique molestiae.
• With massive funding round and $31 billion valuation, Anduril is nearing the size of defense industry giants it wants to displace - Fortune
• What made you stop being an addict?