1.0.0

   let output = 0
   let i = 1
   while i < 10 do
       let j = 0

       while j < 10 do
           output = output + j * i
           if j == 5 then break
           j = j + 1
       end
       i = i + 1
   end

   # To print without newline:
   write(tostring(100))

   # or

   import io
   io.print(100)

   # To print with a newline:
   writeln(tostring(100))

   # or

   import io
   io.println(100)

   let println = fun(v)
       writeln(tostring(v))

   let sum = fun(x)
       if x < 2 then x
       else x + sum(x - 1)

   println(sum(3))

   let println = fun(v)
       writeln(tostring(v))

   println((fun(x) if x < 2 then x else x + @(x - 1))(3))

   import io
   io.print(10)
   io.println(20)
   io.print(30)

   let export print = fun(val) write(tostring(val))
   let export println = fun(val) writeln(tostring(val))