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

Read also:

• What kind of lights would you like to use for your home decor?
• I can not sleep. what is the problem?
• Why does it seem that Quora's "moderators" base their moderations on personal beliefs and views by deleting answers that are only violating their personal feelings?
• Are there any men who have sex with male dogs?
• Has a psychic ever made a crazy prediction that turned out to be true?
• I found out I have cancer—I have not told my family. We can’t afford the treatment anyway. Should I just say nothing and let nature take its course?
• Why did Donald Trump and Melania Trump sleep in different rooms?
• What do you respect the most about Elon Musk?
• Help. I’m 16 and just got spanked by both of my parents for taking the car. What do I do? I want to run off somewhere but I’m so scared that I’ll get spanked again. I’ve never gotten the paddle before and I’m still scared to sit
• Do Republicans want to ban books and decide what your kids can and can’t read?
• Why are FtM trans just another type of woman?
• What is the funniest husband-wife comedy team ever: Abbott & Costello, Martin & Lewis, Burns & Allen or something else entirely?
• Can cheating be a result of not truly loving or caring for someone, or is it sometimes just a spur of the moment decision?
• What is one thing you've learned from life?