select h.hacker_id, h.namefrom submissions as s join hackers as h on s.hacker_id = h.hacker_id join challenges as c on s.challenge_id = c.challenge_id join difficulty as d on c.difficulty_level = d.difficulty_levelwhere d.score = s.scoregroup by h.hacker_id, h.namehaving count(s.hacker_id) > 1order by count(s.hacker_id) desc, s.hacker_id asc