B3311331313231311331322331333132313331322331323133313331323221211331311332221   >>    B331133131323131133132233133313231333132233132313331333132322121133131133222   <<    B3311331313231311331322331333132313331322331323133313331323221211331311332223   >>      B3311331313231311331322331333132313331322331323133313331323221211331311332222   >>