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

Read also:

• How can one learn to talk frankly?
• Trump-Musk feud leaves some DOGE staffers worried about their futures: Sources - ABC News
• Oil rallies as Russia-Ukraine tensions offset OPEC+ output hike - Investing.com
• Can you explain the concept of an annulment of marriage in the Roman Catholic Church and its effects on a previous marriage?
• Top prospects for 2025 Draft arrive in Buffalo for Scouting Combine - NHL.com
• Do you believe that the portrayal of smoking in films and music videos contributes to the glamorization of cigarettes in society?
• Why don't I get sleep at nights?
• Have you ever been humiliated in front of a group of girls and enjoyed it?
• United Switches Off Starlink Internet on Regional Jets After Static Problem - WSJ
• What are some sad truths about life?