Marek Michalczyk participated in the DESY Summer Student Program, working within the Zeuthen Particle Physics Theory Group from July 21 to September 10, 2026, including a 5-day visit to DESY Hamburg under supervision of Dr. Peter Marquard. During the program, he completed a research project titled “Multiple Polylogarithms, Implementation in Mathematica” and attended a series of lectures in particle physics, with full details available on the DESY Indico page (https://indico.desy.de/event/53702/overview).