kotlin when using read line

fun main(args:Array<String>)
{
    println("ENTER A NO BETWEEN 1 - 10")
    var enterno= readLine()!!.toInt()
    when(enterno)
    {
        1-> println("WRONG NO 1")
        2-> println("GET CLOSE 2")
        3-> println("CLOSER 3" )
        4-> println("HMM 4 ")
        5-> println("GOOD 5")
        else->{
            println("sorry you lost")
    }


}
}

• OUTPUT
• ENTER A NO BETWEEN 1 - 10
• 2
• GET CLOSE 2
• 
  
• Process finished with exit code 0