Write a program to read dates from input, one date per line. Each date's format must be as follows: March 1, 1990. Any date not following that format is incorrect and should be ignored. The input ends with -1 on a line alone. Output each correct date as: 3/1/1990. Hint: Use string[start:end] to get a substring when parsing the string and extracting the date. Use the split() method to break the input into tokens. Ex: If the input is: March 1, 1990 April 2 1995 7/15/20 December 13, 2003 -1 then the output is: 3/1/1990 12/13/2003   use PYTHON starting with : months = {     "January": 1,     "February": 2,     "March": 3,     "April": 4,     "May": 5,     "June": 6,     "July": 7,     "August": 8,     "September": 9,     "October": 10,     "November": 11,     "December": 12, } import re for data in ['March 1, 1990', 'April 2 1995', '7/15/20', 'December 13, 2003', -1]:     if data == -1:         break     if re.match(r'(\w+) (\d{1,2}), (\d{4})', data) == None:         continue     output = data.split(" ")     output[0] = str(months[output[0]])     output[1] = output[1].replace(",", "")     print("/".join(output))

Write a program to read dates from input, one date per line. Each date's format must be as follows: March 1, 1990. Any date not following that format is incorrect and should be ignored. The input ends with -1 on a line alone. Output each correct date as: 3/1/1990.

Hint: Use string[start:end] to get a substring when parsing the string and extracting the date. Use the split() method to break the input into tokens.

Ex: If the input is:

March 1, 1990 April 2 1995 7/15/20 December 13, 2003 -1

then the output is:

3/1/1990 12/13/2003

use PYTHON

starting with :

months = {
    "January": 1,
    "February": 2,
    "March": 3,
    "April": 4,
    "May": 5,
    "June": 6,
    "July": 7,
    "August": 8,
    "September": 9,
    "October": 10,
    "November": 11,
    "December": 12,
}

import re
for data in ['March 1, 1990', 'April 2 1995', '7/15/20', 'December 13, 2003', -1]:
    if data == -1:
        break
    if re.match(r'(\w+) (\d{1,2}), (\d{4})', data) == None:
        continue
    output = data.split(" ")
    output[0] = str(months[output[0]])
    output[1] = output[1].replace(",", "")
    print("/".join(output))