B3311331313231311331322331333131133132322131333132313231333132313232212131
>>
B331133131323131133132233133313113313232213133313231323133313231323221213
<<
B3311331313231311331322331333131133132322131333132313231333132313232212133
>>
B3311331313231311331322331333131133132322131333132313231333132313232212132
>>