input: Write a function to print numbers in a given string.
  assert print_numbers_in_string("The temperature is 24 degrees Celsius") == [24]
  assert print_numbers_in_string("I have 2 apples and 3 oranges") == [2, 3]
  assert print_numbers_in_string("No numbers here!") == []
output: def print_numbers_in_string(s):
      import re
      return list(map(int, re.findall(r'\d+', s)))