// Test long loops of circular inheritance

class A extends Z {}
class B extends A {}
class C extends B {}
class D extends C {}
class E extends D {}
class F extends E {}
class G extends F {}
class H extends G {}
class I extends H {}
class J extends I {}
class K extends J {}
class L extends K {}
class M extends L {}
class N extends M {}
class O extends N {}
class P extends O {}
class Q extends P {}
class R extends Q {}
class S extends R {}
class T extends S {}
class U extends T {}
class V extends U {}
class W extends V {}
class X extends W {}
class Y extends X {}
class Z extends Y {}