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

Read also:

• What is unattractive about a nice guy? Why do some women don’t choose nice guys?
• Did Trump show us once again that he is a master debater?
• Why do nearly all of the answers on Quora have “read more” and when I click on it, I get a virus warning every time? Has anyone else had this happen?
• What are some mind-blowing facts about Michael Jackson?
• What are your political and economic beliefs? How did you form them, especially in comparison to those who hold opposing views?
• How can you maintain self-control?
• Teens like me, what are your expectations when entering adulthood?
• Midea is recalling its U-shaped air conditioners because of potential mold growth - The Verge
• Trump is forcing this dirty, costly coal plant to stay open - The Washington Post
• What defines the k'vanna of the Book of בראשית?