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

Read also:

• World No. 1 Jannik Sinner ousts Novak Djokovic from Roland Garros to set up title clash with defending champ Carlos Alcaraz - CNN
• How can one select funeral songs that truly celebrate the essence of a loved one’s life while providing comfort to attendees?
• Massive Asteroid Bigger Than the Empire State Building is Racing Toward Earth - The Daily Galaxy
• Pokémon Cafes To Serve Incredible-Looking Plate Of Food That Can Mega Evolve Before Your Eyes - Kotaku
• Addison Rae’s debut album proves her evolution from influencer to pop heavyweight is complete - The Independent
• Tony Awards: Predicting the Winners Using Just Math - The Hollywood Reporter
• What makes girls masturbate?
• Why are German films often so formulaic even though Germany is a European culture? I love them but they follow formula very closely like Hollywood. What are the best German films?
• How do professional musicians handle their equipment during gigs? Do they bring their own or use the venue's sound system?
• “16 and Pregnant ”Star Whitney Purvis’ Son, Weston, Dies at 16: 'My Worst Nightmare Come True' - Yahoo News Canada
• Were there any friendly fire incidents involving American submarines, aircraft carriers, or battleships during World War II or World War I?
• Why do people who aren't trans feel the need to put pronouns next to their name or picture? It seems so cringeworthy to me, to participate in that SJW paradigm of thought, like they are a spineless person who just goes along with the trends.