some code to do equations

fun main(){
val mutablename != null
var mutableageOLD != null
var ageNEW != null
// as testing ticket^
val num1 != null
val num2 != null
val out = num1 + num2
println(out)
println("done by: " + mutablename)
if (ageNEW > null){
println("new age " + ageNEW)
}
}