B3311331313231311331322331333132313331322331323133313331323221121113111   >>    B331133131323131133132233133313231333132233132313331333132322112111311   <<    B3311331313231311331322331333132313331322331323133313331323221121113113   >>      B3311331313231311331322331333132313331322331323133313331323221121113112   >>