I believe the error is when trying to concat a and b.
The thing is the function concat can be used to concat 2 lists so why cant I concat a and b ?!
I know there is a fuction concat pre defined to do this but I dont want to use it. I want to create my own.
So if someone can help I would be very glad. if possible pls show me how to concat a and b having built my own function, Ty all =) and yes , I am new to Haskell.