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

Read also:

• Google Confirms Most Gmail Users Must Upgrade All Their Accounts - Forbes
• Et maxime modi eaque sint iure.
• Why cant I breathe when I sleep on my back, I can breathe if im on my side or stomach but I feel uncomfortable since either my neck is twisted or my back is in pain, im physically healthy and my surroundings are clean so whats the problem?
• Black holes don’t behave as we thought, study finds - The Brighter Side of News
• Do you usually wear your panties over or under your pantyhose?
• How do people break a narcissist man's ego?
• Sophie Cunningham’s $1M Social Jump Dwarfs WNBA Fines - Sportico.com
• Why do people ask stupid questions on Quora when they instead could ask ChatGPT?
• What are the best children's books by age 13?
• Something Big Is Twisting Mercury’s Crust - Gizmodo