Write a function to round every number of a given list of numbers and print the total sum multiplied by the length of the list.
def round_and_sum(list1):
  lenght=len(list1)
  round_and_sum=sum(list(map(round,list1))* lenght)
  return round_and_sum
<s>[INST]<<SYS>>Given a task and its code, generate test cases for the code.<</SYS>>Write a function to round every number of a given list of numbers and print the total sum multiplied by the length of the list.
def round_and_sum(list1):
  lenght=len(list1)
  round_and_sum=sum(list(map(round,list1))* lenght)
  return round_and_sum[/INST]assert round_and_sum([22.4, 4.0, -16.22, -9.10, 11.00, -12.22, 14.20, -5.20, 17.50])==243
assert round_and_sum([5,2,9,24.3,29])==345
assert round_and_sum([25.0,56.7,89.2])==513</s>