length n = 42
dimension k = 5
alphabet length q = 8

minimum distance d = 29

generator matrix:
111111111111111111111111111111111111111111
361111333666111111222333444444555666777777
161366133116445677233223114455144177116677
166316313161454767323232451514414717671716
166361331611544776332322545141441771767161

by truncation of 43