B3311331313231311331322331333132313233313231333131133132322331312111111223321   >>    B331133131323131133132233133313231323331323133313113313232233131211111122332   <<    B3311331313231311331322331333132313233313231333131133132322331312111111223323   >>      B3311331313231311331322331333132313233313231333131133132322331312111111223322   >>