B3311331313231311331322331333131133132313131133133313232233132313231132211
>>
B331133131323131133132233133313113313231313113313331323223313231323113221
<<
B3311331313231311331322331333131133132313131133133313232233132313231132213
>>
B3311331313231311331322331333131133132313131133133313232233132313231132212
>>