B3311331313231311331322331333132313331322331323133313231323222233111   >>    B331133131323131133132233133313231333132233132313331323132322223311   <<    B3311331313231311331322331333132313331322331323133313231323222233113   >>      B3311331313231311331322331333132313331322331323133313231323222233112   >>