B331133131323131133132233133313113313331323211231133133313232211
>>
B33113313132313113313223313331311331333132321123113313331323221
<<
B331133131323131133132233133313113313331323211231133133313232213
>>
B331133131323131133132233133313113313331323211231133133313232212
>>