B33113313132313113313223313331323331313231323132313331333132313232212131
>>
B3311331313231311331322331333132333131323132313231333133313231323221213
<<
B33113313132313113313223313331323331313231323132313331333132313232212133
>>
B33113313132313113313223313331323331313231323132313331333132313232212132
>>