$$Lambda$ error while assign function to immutable variable in windows

I am getting always this error if I am trying to assign , please find the sample code

scala> val s = (i: Int) => i * i
s: Int => Int = $$Lambda$1023/38023477@3ca14cf4

I am having windows 10 16gb ram with Scala 2.12.1 installed and running this through CMD REPL.

If I execute the same code on itversity Labs it is working fine.

scala> val s = (i: Int) => i * i
s: Int => Int =

Please help me understanding where I am doing anything wrong.