B3311331313231311331322331333131133133313111333133313331322121111113313222211
>>
B331133131323131133132233133313113313331311133313331333132212111111331322221
<<
B3311331313231311331322331333131133133313111333133313331322121111113313222213
>>
B3311331313231311331322331333131133133313111333133313331322121111113313222212
>>