C3132121111133313233121111331333133313331333133313331333133313223313232213131   >>    C313212111113331323312111133133313331333133313331333133313331322331323221313   <<    C3132121111133313233121111331333133313331333133313331333133313223313232213133   >>      C3132121111133313233121111331333133313331333133313331333133313223313232213132   >>