B331133131323131133132233133313132313231313331333133313231323131232312121
>>
B33113313132313113313223313331313231323131333133313331323132313123231212
<<
B331133131323131133132233133313132313231313331333133313231323131232312123
>>
B331133131323131133132233133313132313231313331333133313231323131232312122
>>