gistfile1.txt

fun main(args: Array<String>) {
    var i = 1;
    print("print",{
        i = 2;
        printUpperCase("uppercase",{
            i =3;
            println(i);
        })
    })
}

fun print(a:String ,fn: () -> Unit){
    println(a);
    fn();
}

fun printUpperCase(a:String,fn: () -> Unit){
    println(a.toUpperCase());
    fn()
}