from typing import Callable, Iterator
 
def unfold[T](k: T, f: Callable[[T], T]) -> Iterator[T]:
  """
  Unfold a sequence from an initial value.
 
  Unfold creates a (potentially infinite) sequence by continuously
  applying f to k, and storing the result back in k.
 
  Iteration is interrupted when f raises StopIteration.
 
  The initial k is always present in the resulting sequence.
  """
  yield k
  while True:
    try:
      k = f(k)
    except StopIteration:
      break
    else:
      yield k
 
def next_collatz(n):
  if n <= 1:
    raise StopIteration()
  elif n % 2 == 0:
    return n // 2
  else:
    return n * 3 + 1
 
initial = int(input())
unfold_collatz = unfold(initial, next_collatz)
print(list(unfold_collatz))

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

MTE5

119