A factory produces food items. The items must be used within a certain number of days after their production date. The number of days is known as the shelf life. It is different for each type of item but is always a whole number in the range 1 to 21 (inclusive). The latest date that an item can be used is called the 'use-by' date. A program is needed to produce labels which show the 'use-by' date. Part of the program is a function GetDate() which will: • take two parameters: a production date and a value representing the shelf life • return the corresponding ‘use-by' date. The program contains a global 1D array DaysInMonth of type integer which stores the number of days in each month (index 1 is January): Index | Value ---|--- 1 | 31 2 | 28 3 | 31 4 | 30 11 | 30 12 | 31 Note: Leap years are not considered