B3311331313231311331322331333132313133313113313113313232233132313112331121211
>>
B331133131323131133132233133313231313331311331311331323223313231311233112121
<<
B3311331313231311331322331333132313133313113313113313232233132313112331121213
>>
B3311331313231311331322331333132313133313113313113313232233132313112331121212
>>