{range_rs@!} range =

{
  fn =
  list =

  [ list fn ] map_rs@!
} map = 

{
  i =
  i 5 *
  i println!
} f = 

50 range! f map! println!


{
  cond =
  false_fun =
  true_fun =

  false_fun true_fun cond ? !
} if =



{&} while = 



"> " input@! user_input = 


{
  "they are eq!" println!
} {
  "they not eq :(" println!
} "testing!" user_input eq! if!



1 n =
{
  n println!
  0 n =
  n println!
} {n 1 eq!} while!




{ a= b= a } True = 
{ a= b= b } False = 



6 5 False! println!