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  1. count = 0
  2. for input in range(1,1000):
  3.     free=0
  4.  
  5.     while(input!=free):
  6.         sum=0
  7.         s=str(input)
  8.         length=len(s)
  9.  
  10.         for j in range(0,length):
  11.             sum += int(s[j])**2
  12.  
  13.         if sum==1 :
  14.             break
  15.  
  16.         if sum==89:
  17.             count+=1
  18.             break
  19.  
  20.         free = input
  21.         input=sum
  22.  
  23. print(count)
Success #stdin #stdout 0.03s 9204KB
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stdout
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857
https://ideone.com/sIL8IG
language:
Python 3 (python  3.12)
created:
4 years ago
visibility:
public

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