interface A

open class B {
    override fun equals(other: Any?): Boolean {
        return super.equals(other)
    }

    override fun hashCode(): Int {
        return super.hashCode()
    }
}

class C : A, B() {
    override fun equals(other: Any?): Boolean {
        return super.equals(other)
    }

    override fun hashCode(): Int {
        return super.hashCode()
    }
}