B3311331313231311331322331333132313331322331323133313331323222123313233111   >>    B331133131323131133132233133313231333132233132313331333132322212331323311   <<    B3311331313231311331322331333132313331322331323133313331323222123313233113   >>      B3311331313231311331322331333132313331322331323133313331323222123313233112   >>