object Main extends App { // your code goes here val f:(String=>String)= s=>{var a="paper,scissors,rock".split(",")/*/**/ a[-1]="rock" return a[a.indexOf(s)-1];`*/a((a.indexOf(s)+1)%3)//`//Ook. Ook! Ook! Ook? Ook! Ook. Ook. Ook! Ook? Ook! } println(f("rock")) println(f("paper")) println(f("scissors")) }