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achulkov2

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Feb 24th, 2018
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  1. def forward(n):
  2. if n == 1:
  3. print(1, 1, 3)
  4. return
  5. forward(n - 1)
  6. print(n, 1, 2)
  7. backward(n - 1)
  8. print(n, 2, 3)
  9. forward(n - 1)
  10. def backward(n):
  11. if n == 1:
  12. print(1, 3, 1)
  13. return
  14. backward(n - 1)
  15. print(n, 3, 2)
  16. forward(n - 1)
  17. print(n, 2, 1)
  18. backward(n - 1)
  19. n = int(input())
  20. forward(n)
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