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

Read also:

• What factors contributed to The Beatles' bitterness?
• The Easiest Way to Lower Cortisol, According to a Longevity Expert - Vogue
• Why do so many people suddenly think it's acceptable to continue to live with their parents into adulthood?
• What is the experience of wearing a school uniform every day? Do people typically get used to it or dislike it?
• Amazon knocks up to 50% off Garmin watches — here are 15 deals worth shopping now - Tom's Guide
• What was your first gay male experience?
• Do any members of BTS have significant others in real life? If so, why do they choose not to discuss it publicly?
• Why is dating so frustrating and difficult for a guy?
• How much stronger is an average man than an average woman?
• Why do atheists want to see God so badly?
• Scale AI founder Alexandr Wang says he's waiting for Elon Musk's Neuralink before he has kids - Business Insider
• The Best Deals Today: Indiana Jones and the Great Circle, Nintendo Switch OLED, and More - IGN
• How did you know you weren't the narc?
• A recipe to reverse cancer’s sweet tooth - Cold Spring Harbor Laboratory