please answer it using MATLAB ONLY. Thank you

Q3: Develop an M-file function to determine the elapsed days in a year up to a specific date. The first line of the function should be set up as functionnd=days(mo,da,year) where mo = the month (112), da = the day (131), and year = the year. Test it for January 1,1997 (should return 1 for this day), February 29, 2008, May 15, 2016, and December 31, 2022. Hint: Use the "for" and "switch" structures in your program