B3311331313231311331322331333132313331322121133133313331333133313212121
>>
B331133131323131133132233133313231333132212113313331333133313331321212
<<
B3311331313231311331322331333132313331322121133133313331333133313212123
>>
B3311331313231311331322331333132313331322121133133313331333133313212122
>>