B3311331313231311331322331333131133131323131133133313232233132313121123231
>>
B331133131323131133132233133313113313132313113313331323223313231312112323
<<
B3311331313231311331322331333131133131323131133133313232233132313121123233
>>
B3311331313231311331322331333131133131323131133133313232233132313121123232
>>