input: Write a function to multiply two input numbers and print the result. The function should take two parameters `a` and `b`, multiply them, and then print the result. If the input numbers are integers or floats, the function should handle them correctly.
  
  assert multiply(3, 4)==12
  assert multiply(5.5, 2)==11.0
  assert multiply(-1, 6)==-6
  assert multiply(0, 10)==0
  assert multiply(1, 0)==0
output: def multiply(a, b):
      result = a * b
      print(result)