The generator matrix

 1  0  1  1  1  4  1  1  0  0  1  1  1  1  6  1  1  2  1  1  0  1  4  1  2  1  1  0  1  1  2  1  1  2  1  1  1  2  6  1  6  1  1  2  1  2  6  1  1  1  2  1  1  1  6  1  1
 0  1  1  0  1  1  4  3  1  1  0  7  5  4  1  1  4  1  4  3  1  1  1  2  1  1  6  1  4  2  1  5  2  1  1  4  2  1  1  6  1  4  3  1  1  1  1  1  5  4  1  3  3  7  1  3  7
 0  0  2  0  0  0  0  4  4  4  0  0  4  6  2  6  6  6  2  6  6  6  2  6  0  4  6  2  0  4  6  2  0  0  4  6  6  2  6  2  0  4  6  4  0  6  6  6  2  6  6  4  0  4  0  6  2
 0  0  0  2  0  0  4  0  6  6  6  2  6  6  6  2  0  2  6  4  0  6  4  4  2  6  2  2  4  6  4  2  6  4  4  0  6  0  6  0  0  4  4  0  2  4  2  4  4  2  0  2  4  0  0  0  2
 0  0  0  0  2  6  6  0  6  0  2  4  2  2  4  4  6  2  0  6  6  6  0  4  0  4  0  2  2  6  6  0  0  2  4  4  2  6  4  6  0  2  2  4  4  0  6  2  2  6  2  6  6  2  6  2  2

generates a code of length 57 over Z8 who´s minimum homogenous weight is 50.

Homogenous weight enumerator: w(x)=1x^0+54x^50+144x^51+242x^52+308x^53+334x^54+400x^55+431x^56+430x^57+409x^58+358x^59+288x^60+246x^61+200x^62+114x^63+45x^64+12x^65+23x^66+18x^67+12x^68+10x^69+6x^71+4x^72+2x^73+4x^74+1x^80

The gray image is a code over GF(2) with n=228, k=12 and d=100.
This code was found by Heurico 1.16 in 0.667 seconds.