C1111133313331323223313331333133313331333131211113313331312111113231311   >>    C111113331333132322331333133313331333133313121111331333131211111323131   <<    C1111133313331323223313331333133313331333131211113313331312111113231313   >>      C1111133313331323223313331333133313331333131211113313331312111113231312   >>