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

Read also:

• 8 signs you're mentally stronger than 95% of people, according to psychology - VegOut
• What do you do when you are struggling to fall asleep?
• Do women like men who have slept with many women?
• Why do people have trouble accepting the very true fact that "The Blue Marble" photo of Earth is a composite and therefore (just like every other subsequent "picture" of Earth NASA has ever shown us) not a real photo but computer generated?
• What’s the best way to get over someone you love?
• Women like what they hear while men like what they see, it that true?
• This is a real question: Why do a lot of men/boys hate (yes, hate) women that voice their criteria in choosing a partner? Even when the criteria is sane and responsible. Besides it being, sadly, an effective mating strategy, why does it exist?
• King Charles Shares Super Rare Photo With Late Father Prince Philip - AOL.com
• What are the consequences of being addicted to something? Is it considered wrong to have an addiction?
• Why are people saying that Trump is fat when he is an athletic 6 foot 3 and 215 pounds?