use python only

Write a program which prompts the user to enter their name. You can assume that the user will always enter their name in the following format - first name middle name surname - where there is a single space character between the first name and the middle name and a single space character between the middle name and surname. The program will print the user's name in the ACM author name format. The ACM author name format consists of the surname, followed by the first letter of the first name followed by the first letter of the middle name. The first letter of the first name and the first letter of the middle name are followed by a dot. There is a single space character between each component of the ACM author name format. Some examples of the completed program being used are shown below. Notes: - The output must be in the format shown in the example below, including the format of the prompt, and all spaces and punctuation. For example