The generator matrix

 1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  2  0  1  2  1  1  1  2  1  1  1  1  0  0  1  2  0  1  1  1  1  1  1  1  1  1  1  1  2  1  1  1  1  1  2  0  1  1  1  1  0  1  1  1  0  2  0  1  1  1  1  1  2  1  1  2  1
 0  2  0  6  0  6  0  6  0  6  4  6  0  6  2  0  4  4  6  6  0  6  0  2  4  0  4  4  6  2  2  2  6  2  0  6  0  6  6  6  2  6  0  4  2  2  6  6  2  2  6  2  0  0  4  2  0  6  6  0  6  4  4  0  4  0  0  2  4  2  6  2  2  2  2  6  2  6  2  0  0  0  4  2  6  4  2  0  4
 0  0  4  0  0  0  0  0  0  0  4  0  4  4  4  0  4  0  0  0  0  4  4  4  4  0  0  0  4  0  4  0  0  0  0  4  0  4  4  4  4  4  0  0  0  4  4  0  4  4  4  0  4  0  4  0  4  0  0  0  0  0  4  4  0  0  4  0  4  0  4  4  4  0  0  4  0  0  4  4  4  0  0  0  0  4  0  4  0
 0  0  0  4  0  0  0  0  0  0  0  4  0  4  4  0  0  0  0  4  0  4  0  0  0  0  0  0  4  4  0  0  0  0  4  0  4  4  4  0  4  4  4  4  0  0  4  0  0  4  0  4  4  0  0  4  4  4  4  4  0  4  0  0  4  0  4  4  4  4  4  0  4  0  0  4  4  0  0  4  0  4  0  0  4  4  4  0  4
 0  0  0  0  4  0  0  0  0  0  0  0  4  0  0  0  4  4  0  0  4  0  4  0  4  0  0  4  0  0  0  0  4  4  4  4  4  4  4  4  0  4  4  4  0  0  4  0  0  0  0  4  4  0  0  4  4  0  4  0  0  0  0  0  0  4  4  4  0  0  0  4  0  4  4  4  4  4  4  0  0  4  0  4  4  0  0  4  4
 0  0  0  0  0  4  0  0  0  4  0  4  0  0  4  0  0  0  0  4  4  0  4  4  4  4  4  4  0  4  0  4  4  0  0  0  4  4  4  4  0  4  0  4  0  0  4  4  4  0  4  4  0  4  4  4  4  4  4  4  0  0  0  4  0  0  4  0  0  0  4  0  0  0  4  0  0  0  4  4  4  4  4  4  4  4  0  0  0
 0  0  0  0  0  0  4  0  0  0  0  0  4  0  0  4  0  4  4  4  0  4  0  4  4  4  4  4  4  4  4  4  4  4  4  4  4  0  0  4  4  0  4  4  0  0  0  0  0  4  0  0  4  0  0  0  4  4  0  0  0  0  4  4  0  4  4  0  0  0  0  0  0  0  4  0  0  0  4  4  4  0  4  0  0  4  4  0  4
 0  0  0  0  0  0  0  4  0  4  0  0  0  4  4  4  4  0  4  4  4  0  0  4  4  4  0  4  4  0  0  0  4  0  4  4  4  0  4  0  0  0  0  0  4  4  4  4  4  4  0  0  4  0  0  4  4  4  0  4  0  4  4  0  0  4  0  4  0  4  0  0  0  4  4  4  0  0  0  4  4  4  0  4  4  4  4  0  0
 0  0  0  0  0  0  0  0  4  0  4  4  4  4  0  4  0  0  0  4  4  0  4  0  4  4  0  0  0  4  4  4  4  4  4  0  0  0  4  0  4  4  0  4  4  4  0  4  4  4  4  0  4  0  0  4  0  0  4  0  0  4  4  0  4  0  4  0  4  4  4  4  0  4  4  4  4  4  0  4  0  0  4  0  0  0  4  0  4

generates a code of length 89 over Z8 who´s minimum homogenous weight is 78.

Homogenous weight enumerator: w(x)=1x^0+55x^78+143x^80+4x^81+219x^82+32x^83+274x^84+112x^85+367x^86+224x^87+513x^88+280x^89+510x^90+224x^91+370x^92+112x^93+251x^94+32x^95+157x^96+4x^97+94x^98+54x^100+25x^102+14x^104+6x^106+6x^108+6x^110+2x^112+3x^114+1x^120+1x^144

The gray image is a code over GF(2) with n=356, k=12 and d=156.
This code was found by Heurico 1.16 in 2.06 seconds.