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

Read also:

• Why is Eric Clapton so roundly disliked among guitarists?
• Are the seasons in Ireland different from those in Scotland, England, and Wales? Or are they just milder versions of each other?
• Famous 'ice-age puppies' are not actually dogs, according to new study - Earth.com
• What is a fun psychological trick to try on someone?
• How is digital marketing important for business?
• What did your best friend do that ended your friendship?
• What do you think of Obito Uchiha?
• Do women like men who have slept with many women?
• Do you anal play alone?
• Why is Nickelback known to be a bad band?
• Why do atheists want to see God so badly?
• What was your wildest experience as a lesbian?
• The #1 Spice to Help You Poop, According to Dietitians - EatingWell
• How old is planet Earth? Is it 4.5 billion years old or 6,000 years old?
• Was Michael Jackson really an innocent person?