C1111133313331323223313331333133313331333131133133313331312111113231221   >>    C111113331333132322331333133313331333133313113313331333131211111323122   <<    C1111133313331323223313331333133313331333131133133313331312111113231223   >>      C1111133313331323223313331333133313331333131133133313331312111113231222   >>