B331133131323131133132233133313231323132333133313132313331323233232212111
>>
B33113313132313113313223313331323132313233313331313231333132323323221211
<<
B331133131323131133132233133313231323132333133313132313331323233232212113
>>
B331133131323131133132233133313231323132333133313132313331323233232212112
>>