// !LANGUAGE: +FunctionTypesWithBigArity

// Implementing function interface is prohibited in JavaScript
// IGNORE_BACKEND: JS_IR, JS
// IGNORE_BACKEND: JVM, JVM_IR

class A(val value: String)

class Fun : (A, A, A, A, A, A, A, A, A, A, A, A, A, A, A, A, A, A, A, A, A, A, A, A, A, A, A, A, A, A, A, A, A, A, A, A, A, A, A, A, A, A) -> String {
    override fun invoke(
        p1: A, p2: A, p3: A, p4: A, p5: A, p6: A, p7: A, p8: A, p9: A,
        p10: A, p11: A, p12: A, p13: A, p14: A, p15: A, p16: A, p17: A, p18: A, p19: A,
        p20: A, p21: A, p22: A, p23: A, p24: A, p25: A, p26: A, p27: A, p28: A, p29: A,
        p30: A, p31: A, p32: A, p33: A, p34: A, p35: A, p36: A, p37: A, p38: A, p39: A,
        p40: A, p41: A, p42: A
    ): String {
        return p21.value + p32.value
    }
}

fun box(): String {
    val a = A("")
    val f = Fun()
    return f(a, a, a, a, a, a, a, a, a, a, a, a, a, a, a, a, a, a, a, a, A("O"), a, a, a, a, a, a, a, a, a, a, A("K"), a, a, a, a, a, a, a, a, a, a)
}