B3311331313231311331322331333132313331322331323133313331333131332213111   >>    B331133131323131133132233133313231333132233132313331333133313133221311   <<    B3311331313231311331322331333132313331322331323133313331333131332213113   >>      B3311331313231311331322331333132313331322331323133313331333131332213112   >>