P16538 [THUPC 2026 Final] Celebration Souvenir

From the final of the 2026 Tsinghua University Programming Contest and University Invitational (THUPC2026). Editorials and other resources are available at https://github.com/dapingguo8/THUPC2026-final.

At this point, the 10th anniversary celebration of THUPC is about to end. Little T and Little S are standing at the exit of the main venue, preparing exquisite souvenir gifts for every student returning home with a full harvest. Ten years have left countless shining moments, and tonight’s gathering is also unforgettable. After this series of collisions between intelligence and joy, everyone surely has their own favorite event. Therefore, based on everyone’s different choices, Little T and Little S will each present a 10th anniversary custom souvenir with the corresponding theme. Please choose your favorite one from all the events in this celebration, and obtain this exclusive souvenir.

This problem has no input.

Output one line containing a string made up of only English letters (case-insensitive), indicating your favorite event.

Thanks to all contestants who traveled from afar, thanks to all staff members who worked so hard, thanks to all sponsors for their generous support, thanks to all teachers who have helped and guided the Algorithm Association all along, thanks to every connection over the past ten years with the Tsinghua University Student Algorithm Association. In the 10th year, we still have not gone out of business!!!!!!!!!! Translated by ChatGPT 5