length n = 25
dimension k = 7
alphabet length q = 3

minimum distance d = 13

generator matrix:
0000011111111111111111111
0011100000011111122222222
1101201122201122200000122
1202010100211200200012101
2012221212012201102220202
1001100121211000021211222
2010210112222002121111212

by truncation of 26