B3311331313231311331322331333131133133313232112311331333133313123231312331
>>
B331133131323131133132233133313113313331323211231133133313331312323131233
<<
B3311331313231311331322331333131133133313232112311331333133313123231312333
>>
B3311331313231311331322331333131133133313232112311331333133313123231312332
>>