input: Write a python function to print the Fibonacci sequence up to a given number.
  assert print_fibonacci_sequence(9)== None # prints 0 1 1 2 3 5 8 13 21
  assert print_fibonacci_sequence(5)== None # prints 0 1 1 2 3
  assert print_fibonacci_sequence(1)== None # prints 0
output: def print_fibonacci_sequence(n):
      a, b = 0, 1
      count = 0
      while count < n:
          print(a, end=" ")
          a, b = b, a + b
          count += 1
      print()