B33113313132313113313223313331323133313223313231333133313231322221221   >>    B3311331313231311331322331333132313331322331323133313331323132222122   <<    B33113313132313113313223313331323133313223313231333133313231322221223   >>      B33113313132313113313223313331323133313223313231333133313231322221222   >>