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  1. dic = {}
  2. a = input().upper()
  3. for i in a:
  4.     if i in dic:
  5.         dic[i] += 1
  6.     else:
  7.         dic[i] = 1
  8. valuelist = list(dic.values())
  9. valuelist.sort()
  10. if valuelist[len(valuelist)-1] == valuelist[len(valuelist)-2]:
  11.     print("?", end = '')
  12. else:
  13.     tmp = {v:k for k,v in dic.items()}
  14.     print(tmp.get(valuelist[len(valuelist)-1]))
Success #stdin #stdout 0.02s 9072KB
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https://ideone.com/HOB8xV
language:
Python 3 (python  3.9.5)
created:
1 year ago
visibility:
public

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