C1111133313331323223313331333133313113313121111331311331333112323221   >>    C111113331333132322331333133313331311331312111133131133133311232322   <<    C1111133313331323223313331333133313113313121111331311331333112323223   >>      C1111133313331323223313331333133313113313121111331311331333112323222   >>