How to Bruteforce a part-known string?

[nobody2013]

Hello,

I am pretty new to hashcat, the GUI is not working for me because of syntax errors, so I found out how to use the textmode.

My question: How to define a specific word which I know for sure, that it is a part of the string?

My command looks something like this. (lets say that the string I search is: "test2013")

Code:

hashcat-cli32.exe -m 0 -a 3 -o found.txt hash.txt "?l?l?l?l2013"

But the process build up like this.

?l
?l?l
?l?l?l
?l?l?l?l
?l?l?l?l2
?l?l?l?l20
?l?l?l?l201
?l?l?l?l2013

but I should look like this

?l2013
?l?l2013
?l?l?l2013
?l?l?l?l2013

to make the process faster. Because it useless to try
2
20
201
2013
because I know for sure the part "2013" is in the string.

How to do this?

thanks