length n = 47
dimension k = 7
alphabet length q = 3

minimum distance d = 25

generator matrix:
00001111111111111111100000011111111111111111111
11110000001112222222200011100011111111122222222
01110012221120111122201102200100111222200111222
10120122221222011211211111201102111011212022012
10110011121011012201210212122011002201112101122
22012000201122120221010202222111010102022021210
02020020120122100111200111222212102020221200001

by truncation of 48