B3311331313231311331322331333132313232233131311331333131133132322121311
>>
B331133131323131133132233133313231323223313131133133313113313232212131
<<
B3311331313231311331322331333132313232233131311331333131133132322121313
>>
B3311331313231311331322331333132313232233131311331333131133132322121312
>>