B331133131323131133132233133313113313231313113313331323223313231323132313211221
>>
B33113313132313113313223313331311331323131311331333132322331323132313231321122
<<
B331133131323131133132233133313113313231313113313331323223313231323132313211223
>>
B331133131323131133132233133313113313231313113313331323223313231323132313211222
>>