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  1. def fibonacci(n):
  2. if n == 1: return 1
  3. if n == 0: return 0
  4. if n < 0: raise Exception('solo z+')
  5. print(n)
  6. return n + fibonacci(n-1)
  7.  
  8. num = int(input())
  9. print(fibonacci(num))
  10.  
Success #stdin #stdout 0.03s 63708KB
stdin
7
stdout
7
6
5
4
3
2
28