The generator matrix

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

generates a code of length 58 over Z4 who´s minimum homogenous weight is 50.

Homogenous weight enumerator: w(x)=1x^0+136x^50+270x^52+280x^54+302x^56+238x^58+240x^60+167x^62+171x^64+133x^66+60x^68+33x^70+10x^72+5x^74+2x^76

The gray image is a code over GF(2) with n=116, k=11 and d=50.
This code was found by Heurico 1.16 in 0.482 seconds.