/**
 * Functon takes integers x and y with a return type of Int
 */
fun multiply(x:Int,y:Int):Int{
    return x * y
}
/** No need or braces when only one statement is necessary**/

fun add(x: Int, y: Int):Int  = x + y

/** Kotlin will know that return type is Int**/

fun subtract(x: Int,y: Int) = x - y

/*Find the max of a and b.
* Note here that if construct is an epression in Kotlin(returns a value)
* unlike in Java
*/

fun max(a:Float,b:Float) = if(a>b) a else b