C1111133313331323223313331333133313113313223313331333132322331221   >>    C111113331333132322331333133313331311331322331333133313232233122   <<    C1111133313331323223313331333133313113313223313331333132322331223   >>      C1111133313331323223313331333133313113313223313331333132322331222   >>