B3311331311211331323131231232313231323223313232313331323132313221211
>>
B331133131121133132313123123231323132322331323231333132313231322121
<<
B3311331311211331323131231232313231323223313232313331323132313221213
>>
B3311331311211331323131231232313231323223313232313331323132313221212
>>