B33113313132313113313223313331323133313223313231333133313113322221231   >>    B3311331313231311331322331333132313331322331323133313331311332222123   <<    B33113313132313113313223313331323133313223313231333133313113322221233   >>      B33113313132313113313223313331323133313223313231333133313113322221232   >>