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

Read also:

• Are today’s baseball pitchers faster than a few years ago, or is it that radar guns have improved and get the pitch speed as it is released rather than as it reaches the plate?
• Infrared contact lens enables humans to see in dark - DW
• Satellite Scanning the World’s Oceans Detects Elusive Phenomena Scientists Say Had "Been Hiding in Plain Sight - The Debrief
• S.W.A.T. Vet Jay Harrington Breaks Silence on EXILES Surprise: ‘I Did Not Have Spinoff on My Bingo Card’ (Exclusive) - TVLine
• Is it ok for someone to crossdress in public?
• What type of crossdresser are you?
• How do I stop my 12-year-old daughter from crying herself to sleep? I have punished her and she still does it.
• CVS to shutter 5 pharmacies in New York amid closure of 271 stores nationwide - New York Post
• Is Melania still angry that she failed as a model? Why is she so cold and hostile? Why did she blame everyone for her actions in her trite book?
• Thinking from a spiritual perspective, can we say that the journey in recovering from narcissistic abuse a battle of spiritual warfare? Any thoughts on this?
• Why do some people prefer watching movies than reading novels even if they are both based on the same source material (book)?