B33113313132313113313223313331323133313232322331333133313112113121111332212121
>>
B3311331313231311331322331333132313331323232233133313331311211312111133221212
<<
B33113313132313113313223313331323133313232322331333133313112113121111332212123
>>
B33113313132313113313223313331323133313232322331333133313112113121111332212122
>>