B23112323331323132313223313331323331323223313231323133313233313233313112121
>>
B2311232333132313231322331333132333132322331323132313331323331323331311212
<<
B23112323331323132313223313331323331323223313231323133313233313233313112123
>>
B23112323331323132313223313331323331323223313231323133313233313233313112122
>>