11 lines
177 B
Python
11 lines
177 B
Python
s = input().upper()
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dic = {}
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for ch in s:
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dic[ch] = dic.get(ch,0) + 1
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m = max(dic.values())
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res = [k for k, v in dic.items() if v==m]
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print(res[0] if len(res)==1 else '?') |