B33113313132313113313223313331323133313223313231333133313231322233211   >>    B3311331313231311331322331333132313331322331323133313331323132223321   <<    B33113313132313113313223313331323133313223313231333133313231322233213   >>      B33113313132313113313223313331323133313223313231333133313231322233212   >>