fun foo(
    f: (
        Int, Int, Int, Int, Int, Int, Int, Int, Int, Int,
        Int, Int, Int, Int, Int, Int, Int, Int, Int, Int,
        Int, Int, Int, Int, Int, Int, Int, Int, Int, Int,
        Int, Int, Int, Int, Int, Int, Int, Int, Int, Int
    ) -> String
) = f(
    1, 2, 3, 4, 5, 6, 7, 8, 9, 10,
    11, 12, 13, 14, 15, 16, 17, 18, 19, 20,
    21, 22, 23, 24, 25, 26, 27, 28, 29, 30,
    31, 32, 33, 34, 35, 36, 37, 38, 39, 40
)

fun bar(first: Int, vararg args: Int) = if (args.size == 39) "OK" else "Fail: ${args.size}"

fun box(): String = foo(::bar)