length n = 69
dimension k = 8
alphabet length q = 3

minimum distance d = 39

generator matrix:
000000111111100000000000000000000011111111111111111111111111111111111
001111000011100000011111111111111100000000000000011111111222222222222
110011001100101111100000111112222200000111112222200122222000000001122
010101010101010122201222001220011101222000021222202000012000111121200
101001011010022201212012010001122212022022220001210200200011001220101
011010101001012012121220222010200211101102222020020201000102220202010
111100110000122220220121200121201020211220101200121022220210020010000
100110100110021111012202222202010022210212000111002020001222102000012

by truncation of 70