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

Read also:

• ABBA’s Björn Ulvaeus Reveals He’s Writing a New Musical With AI: ‘It’s Fantastic’ and ‘Such a Great Tool’ - Variety
• Do you think this Labour Party is qualified to run our country?
• The Best Father's Day Gift Ideas for Every Type of Dad - IGN
• How the Indiana Pacers Spun Style Into Substance - The Ringer
• How can I fall asleep fast at night?
• 40 Father’s Day Gifts He’ll Wanna Brag About - BuzzFeed
• Celebrity breast cancer announcements highlight rising rates in young women - NBC News
• No. 2 Baseball comes up short against UTSA, 9-7 - University of Texas Athletics - University of Texas Athletics
• Trevor Penning: The things I do well fit better at guard - NBC Sports
• Enamel proteins from Paranthropus robustus teeth reveal biological sex and genetic variability - Phys.org
• Do liberals realise that God, who is much more powerful than them, is on the side of Trump?
• What Happens to Your Blood Pressure When You Drink Energy Drinks Every Day? - Verywell Health
• Proposed NASA cuts to space science: “Staggering” - EarthSky