The generator matrix

 1  0  0  0  1  1  1  0  1  1  1  1  2  2  1  2  1  1  1  1  0  1  2  2  1  1  0  0  1  1  0  1  2  1  1  1  2  2  2  0  1  2
 0  1  0  0  0  1  1  1  2  0  3  3  1  2  0  1  0  0  3  3  2  1  1  2  3  1  0  2  3  0  1  3  1  1  1  1  1  0  1  1  3  1
 0  0  1  0  1  1  0  1  0  3  3  2  2  1  3  1  3  0  1  2  1  1  3  1  3  3  1  1  1  2  0  1  2  2  0  1  2  0  0  3  3  1
 0  0  0  1  1  0  1  1  1  0  1  2  3  1  0  2  3  3  3  3  1  2  2  2  0  2  1  2  1  2  1  1  3  0  3  3  2  1  2  2  1  1
 0  0  0  0  2  0  0  0  0  0  0  0  2  0  2  2  2  0  2  2  2  2  0  2  2  0  0  2  0  2  2  0  2  0  0  2  2  2  2  2  0  0
 0  0  0  0  0  2  0  0  0  0  0  0  0  0  0  0  0  0  0  0  0  2  2  2  2  2  2  2  2  2  2  0  2  2  2  0  2  0  2  2  0  0
 0  0  0  0  0  0  2  0  0  0  0  0  0  2  2  2  2  2  2  0  2  2  2  0  2  0  0  0  2  0  0  2  2  0  2  0  0  2  0  2  0  2
 0  0  0  0  0  0  0  2  2  2  0  2  2  2  2  2  0  2  2  2  2  2  2  0  0  2  0  2  2  2  2  2  0  2  2  2  0  2  2  0  2  2

generates a code of length 42 over Z4 who´s minimum homogenous weight is 33.

Homogenous weight enumerator: w(x)=1x^0+44x^33+124x^34+152x^35+190x^36+246x^37+277x^38+268x^39+289x^40+320x^41+302x^42+320x^43+317x^44+284x^45+230x^46+224x^47+195x^48+116x^49+76x^50+56x^51+28x^52+14x^53+13x^54+4x^55+3x^56+2x^58+1x^60

The gray image is a code over GF(2) with n=84, k=12 and d=33.
This code was found by Heurico 1.16 in 1.29 seconds.