B33113313132313113313223313331323133313223313231333133313311212212131   >>    B3311331313231311331322331333132313331322331323133313331331121221213   <<    B33113313132313113313223313331323133313223313231333133313311212212133   >>      B33113313132313113313223313331323133313223313231333133313311212212132   >>