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

Read also:

• Recently, I cleared my JP Morgan coding round. Next, I received mail for a video interview. What kind of questions are asked in this round? How do I prepare myself?
• Taylor Swift Won Her Biggest Battle - The Ringer
• Why do people believe that global warming is man made?
• The #1 Breakfast to Eat to Support Your Metabolism, According to Dietitians - EatingWell
• Two space vets added to Astronaut Hall of Fame as one awaits launch - collectSPACE.com
• What are some hard truths that MAGA needs to hear?
• Is Tinder the best dating app?
• Michaels acquires Joann’s intellectual property, private label brands - WSB-TV
• According to Trump, Ukraine started the war. Why?
• Why do women change that much more with age?
• Scientists Calculate That the Entire Big Bang Must Have Taken Place Inside a Black Hole - futurism.com