B3311331313231311331322331333132313331322121133133313331323111133112331   >>    B331133131323131133132233133313231333132212113313331333132311113311233   <<    B3311331313231311331322331333132313331322121133133313331323111133112333   >>      B3311331313231311331322331333132313331322121133133313331323111133112332   >>