Yandex interview questions

I have applied to a position online through Yandex jobs website. The recruiter contacted me on the very next day and asked when am I available for the technical interview. Overall the entire process took 3.5 weeks. First interview was a 60 mins phone screen interview with questions about my previous experiences, 2 simple algorithmic tasks (century out of a given year, print similar elements of two arrays) and 3 theoretical tasks. Next part of the interview due to the covid was done remotely and spread across a few days. This part contained of 5 hour long interviews.