I tried several commands and fail,I need something strong decryption.

Password possible ( from 6 to 30 character ) may be something like this : !3eAZtE#6%fgh(&!r3F6g*h)j(&^%

I need to inset :
* Built-in charsets: all option
* Brute-force
-a 3 ?a?a?a?a?a?a
Thank you,
your code does not contain the number of characters that I want to try on,between 6 and 30.

Ho to insert that ? Or this code trying all possible combinations between 1 and 100xxxx
cudaHashcat-plus64.exe -a 3 ?a?a?a?a?a
?a -m 1400 my hash xxxxxx
WARNING: Hash '?a?a?a?a?a?a': Line-length exception
ERROR: No hashes loaded
cudaHashcat-plus64.exe -m 1400 hashlist -a 3 <?a for each position you want to test>
The syntax of the command is incorrect.

I will try tomorrow now I go to sleep.
A good night.
please write code for a password between 6-15 characters,include all combinations from * Built-in charsets:

* Built-in charsets:

?l = abcdefghijklmnopqrstuvwxyz
?d = 0123456789
?a = ?l?u?d?s
?s = !"#$%&'()*+,-./:;<=>?@[\]^_`{|}~
no, you do it.
I understand that nobody knows ( probably knows who made the program else on this site knows nothing so complicated )....or better said you can not do with this program ( I understand this now )probably simple passwords 4 characters think it goes well.

Thanks anyway for your help