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

generates a code of length 58 over Z8 who´s minimum homogenous weight is 52.

Homogenous weight enumerator: w(x)=1x^0+346x^52+522x^54+935x^56+648x^58+812x^60+476x^62+267x^64+8x^66+58x^68+10x^70+12x^72+1x^88

The gray image is a code over GF(2) with n=232, k=12 and d=104.
This code was found by Heurico 1.16 in 30 seconds.