B3311331313231311331322331333132313113313131333132313231333132313232331211
>>
B331133131323131133132233133313231311331313133313231323133313231323233121
<<
B3311331313231311331322331333132313113313131333132313231333132313232331213
>>
B3311331313231311331322331333132313113313131333132313231333132313232331212
>>