Madak Year IOL 2017 Round Individual Contest Number Problem 5 Language Madak (Austronesian) Author Ivan Derzhanski Download Problem Problems † Armenian Bulgarian Chinese (正體) Chinese (简体) Czech Dutch English Estonian French Hungarian Japanese Korean Latvian Polish Portuguese Romanian Russian Slovenian Spanish Swedish Turkish Ukrainian Download Solution Solutions † Armenian Bulgarian Chinese (正體) Chinese (简体) Czech Dutch English Estonian French Hungarian Japanese Korean Latvian Polish Portuguese Romanian Russian Slovenian Spanish Swedish Turkish Ukrainian Best Solutions Name Team Daniel Vedeneev Russia Strelka