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

Read also:

• SpaceX knocks out another national security launch while ULA faces scrutiny - Yahoo
• Here's Where Traders Expect Broadcom Stock to Go After Earnings - Investopedia
• How do I become an intelligent man?
• When British people write X after everything, are they being serious or trying not to be awkward?
• 2025 NFL All-Paid Team: Saquon Barkley, Dak Prescott headline top earners by position - NFL.com
• What causes you to be tired all the time and major headaches?
• What was your first gay male experience?
• Trump's tariffs are hammering the industry he wants to save - Politico
• Gold Climbs as Rising Geopolitical and Trade Tensions Aid Havens - Bloomberg.com
• Neuroimaging study suggests mindfulness meditation lowers sensory gating - PsyPost
• New Chemical Kills 95% of Termites and Can’t Harm Humans - SciTechDaily