B3311331313231311331322331333132313331322331323133313331313232233221231   >>    B331133131323131133132233133313231333132233132313331333131323223322123   <<    B3311331313231311331322331333132313331322331323133313331313232233221233   >>      B3311331313231311331322331333132313331322331323133313331313232233221232   >>