B3311331313231311331322331333132313331323223312113313331333133311211123221   >>    B331133131323131133132233133313231333132322331211331333133313331121112322   <<    B3311331313231311331322331333132313331323223312113313331333133311211123223   >>      B3311331313231311331322331333132313331323223312113313331333133311211123222   >>