B33113313132313113313223313331323132313233313331311233133313232213131121
>>
B3311331313231311331322331333132313231323331333131123313331323221313112
<<
B33113313132313113313223313331323132313233313331311233133313232213131123
>>
B33113313132313113313223313331323132313233313331311233133313232213131122
>>