B331133131323131133132233133313233313132313231323133313231133131232313232223321
>>
B33113313132313113313223313331323331313231323132313331323113313123231323222332
<<
B331133131323131133132233133313233313132313231323133313231133131232313232223323
>>
B331133131323131133132233133313233313132313231323133313231133131232313232223322
>>