please explain the problem with this code as i am new to kotlin

Question

Fun main(args: Array<String>) {
var x:Int= readLine()!!.toInt()
var y:Int= x+x
var z:Int= y+(y/10)
println("your amount is" + z)
}

Answer 1

Suppose you got 12,345 as input for integer <x>

Integer <y> is <x> + <x>
12,345 + 12,345 => 24,690

And Integer <z> is <y> + ( <y> / 10 )
24,690 + ( 24,690 / 10 )
24,690 + 2,469 => 27,159

Then output <z> on console screen, with a line break.

Except for the auto-cap side effects where 'fun' was written as 'Fun'; I didn't see any problem. Perhaps you can descibe the problem in the Description? ☝

What was the code supposed to do?

(Edited)