kotlin multiplication

fun main(args:Array<String>)
{
    var firstno=2    var secno=2    var result:Int?
    result=firstno*secno
    println("THE SUM IS $result")

    //or    println("THE SUM IS ${firstno * secno *3}")
}

• OUTPUT >>> 
• THE SUM IS 4
• THE SUM IS 12
• 
  
• Process finished with exit code 0