B23112323331323132313223313331333132333132333132313231323132313211
>>
B2311232333132313231322331333133313233313233313231323132313231321
<<
B23112323331323132313223313331333132333132333132313231323132313213
>>
B23112323331323132313223313331333132333132333132313231323132313212
>>