How to Send a Value from source to Target as 3 split value

Hi Expert,

I need a help.

My requirement is I have  a filed name "Comments" in source  system and this comment filed i needs to pass to the target in 3 fields.The comment value will be separated in 3 fields like 1)Details 1, 2)Details 2,and 3) Details,as a 40 character. so how can i get this output Kindly help me.Thanks in advanced.

\