A school warm-up exercise to occupy your time - page 8 12345678 New comment sibirqk 2020.09.28 06:59 #71 Nikolai Semko: It's beautiful! It's mesmerizing): Renat Akhtyamov 2020.09.28 15:52 #72 My problem was much easier. Did you solve it? 12345678 New comment