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

Read also:

• Materialists review: This 'captivating' romantic drama explores love and money with 'piercing honesty' - BBC
• The Undervalued Medical Power of Muscle - Medscape
• Beyond The Hype: What Apple's AI Warning Means For Business Leaders - Forbes
• Qualifying results: Shore Lunch 250 presented by Dutch Boy at Elko Speedway - arcaracing.com
• Nintendo: Please don’t remove film layer from Nintendo Switch 2 screen - My Nintendo News
• China’s asteroid-and-comet hunter probe unfurls a ‘solar wing’ - theregister.com
• SpaceX’s Transporter 14 launch today will carry more than 150 capsules of DNA, human remains - Space
• Bicycling tied to reduced dementia risk and greater hippocampal volume retention - Medical Xpress
• A New Study Reveals What Happens When You Drink Coffee Every Day - AOL.com
• Do you enjoy cheating on your spouse? If so, why?