18 lines
188 B
Python
18 lines
188 B
Python
n=input()
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count=0
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r=int(n)
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while len(n)>1:
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r=0
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for i in n:
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v=int(i)
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r+=v
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n=str(r)
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count+=1
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print(count)
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if r%3==0:
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print("YES")
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else:
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print("NO")
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