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

Read also:

• The First in 30 Years: Scientists Discover New Class of Antibiotics - SciTechDaily
• What species of fish are horse mackerels?
• If an abortion doesn’t affect you, why do people make it a big deal?
• The Sun Is Causing Starlink Satellites To Drop From Space - Daily Kos
• What was your best sex experience that still makes you horny?
• After more than 60 years of development, here is the nuclear engine that is set to go to Mars with NASA. - Farmingdale Observer
• Did you ever receive genuine remarks from a medium regarding your deceased relative with information that the medium could never normally know?
• Do you think the constitution and laws should be taught in school?
• What do you think of a parent telling their adult child to “keep their personal life to themselves” in relation to talking to them? No reason they should say that it was mean what should I do?
• Are fanservice-y characters (i.e. Lara Croft, Tifa Lockhart) immediately bad?
• Swimming world body to banish athletes and supporters of doping-fueled event in Las Vegas - AP News
• Rock Icon, 78, Hauled Off Stage in Jaw-Dropping Concert Farewell - Yahoo