date = input("Enter the date in DD/MM/YYYY format: ")
date = date.split("/")

# Check if the date was correct
if len(date) != 3:
    print("The entered date is incorrect")
else:
    # Create variables for day, month and year
    day = int(date[0])
    month = int(date[1])
    year = int(date[2])

    if len(str(year)) != 4:
        print("The year is invalid")
    else:

        # Check if the day is between 1 and 31, and month between 1 and 12
        if 1 < day < 31 and 1 < month < 12:
            # Change month to a string with month's name
            if month == 1:
                month = "Jan"
            elif month == 2:
                month = "Feb"
            elif month == 3:
                month = "Mar"
            elif month == 4:
                month = "Apr"
            elif month == 5:
                month = "May"
            elif month == 6:
                month = "Jun"
            elif month == 7:
                month = "Jul"
            elif month == 8:
                month = "Aug"
            elif month == 9:
                month = "Sep"
            elif month == 10:
                month = "Oct"
            elif month == 11:
                month = "Nov"
            elif month == 12:
                month = "Dec"
            # Display date in "MMM DD, YYYY" format
            fullDate = month + " " + str(day) + ", " + str(year)
            print("The date is " + fullDate)
        else:
            # If the day or month values are incorrect
            print("The date is invalid")
            print("The day is " + str(day) + " and the month is " + str(month))