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

Read also:

• 2-year-old boy is swept away on luggage conveyor belt at Newark Airport in latest terror at beleaguered travel hub - New York Post
• How would you define love?
• Can you recommend a simple song with an awesome solo? What makes the solo stand out?
• Neurosteroids identified as potential therapy for treatment-resistant depression - Medical Xpress
• What are the reasons why am I so tired before my period?
• What do all Indian parents have in common?
• Why are many women so drawn or attracted to men that have been or are currently in prison and men that are involved in street life/illegal activities?
• Beware: There’s a new Trump-RFK Jr. epidemic brewing - NJ.com
• As measles spreads across the Americas, outbreaks in Mexico and Canada have also turned deadly - CNN
• How can we become the best humans? How can we trust each other?
• What is your opinion on the band Nickelback? Why do they receive criticism from some people?
• ☆ what's the thing that made u fell in love with your bias?
• Atheists who have read the Bible and think that contains immoral things, why do you assume that?