Созданы gc с помощью ильи кадинского
⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯

based on code after ":" calculate output of calculate_crc32("eabcd4"):