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

Read also:

• How has your life changed for the past 10 years? Can you share your #10year challenge? Is your life better, worse, or still hopeful?
• What is the reasoning behind conspiracy theorists claiming that there were multiple shooters involved in the JFK assassination?
• What are the reasons behind Europeans preferring to visit third world countries over taking holidays in their own continent?
• In what ways does Bollywood represent India's culture to the rest of the world through movies, songs, and dance? Is this representation accurate?
• I can not sleep. what is the problem?
• How rough can the ferry passage from Hull to Rotterdam be in the autumn ( at the end of October )?
• California schools are very liberal. Do you think California schools are teaching students to hate Republican views (views on: God, guns, prayer, secure borders, etc.)?
• Is it considered rude to comment on someone's weight? Is it simply stating a fact?
• How do I deal with autistic burnout/meltdown/shutdown when cooking?
• What movies have not aged well?
• I'm a 27 year old male currently but I am going through going through gender dysphoria. Why do some transgender people (specifically transgender women since I see that the most) call themselves trannies or shemales? Aren't those offensive words?