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

Read also:

• Have you ever forcibly sucked someone’s dick?
• The Number of Retirees Filing for Social Security Is Surging Under President Donald Trump -- and It's an Ominous Warning - The Motley Fool
• Is it possible for sisters to have different skin, hair colours, and hair types? E.g. hair= wavy, afro, straight, curly, black, brown, blonde, red. Skin colour: brown, peach, light brown and more.
• Researchers raise red flag that doctors may be underprepared for devastating new disease emerging in US: 'We want to give the early warning' - Yahoo
• Sarepta reports second patient death after treatment with Duchenne gene therapy - statnews.com
• What is the most peculiar thing about the human brain?
• My boyfriend won’t tell me his past and it hurts me so I broke up with him what do I do?
• Why are Republicans so brainwashed and oblivious to the fact that a lot of the price increases going on right now is due to corporate greed, not inflation?
• Why is North Korea a jail?
• My blog is new. I need 10 article posts for my blog. How much should I pay for it?
• My husband asked me why do I keep on complaining about him cheating. Why don't I just leave?
• What's your take on Eternal Sunshine of the Spotless Mind? How has it affected you?
• How should an atheist respond to a religious person who asks, "Why do you hate God?" What are some appropriate and inappropriate ways to answer this question?