B33113313132313113313223313331323132333132332133313331323132313231322121
>>
B3311331313231311331322331333132313233313233213331333132313231323132212
<<
B33113313132313113313223313331323132333132332133313331323132313231322123
>>
B33113313132313113313223313331323132333132332133313331323132313231322122
>>