B23112323331323132313223313331323331323223313231323133313331323132322131221
>>
B2311232333132313231322331333132333132322331323132313331333132313232213122
<<
B23112323331323132313223313331323331323223313231323133313331323132322131223
>>
B23112323331323132313223313331323331323223313231323133313331323132322131222
>>