B33113313132313113313223313331323133313223313231333133313231321133132312322121
>>
B3311331313231311331322331333132313331322331323133313331323132113313231232212
<<
B33113313132313113313223313331323133313223313231333133313231321133132312322123
>>
B33113313132313113313223313331323133313223313231333133313231321133132312322122
>>