Use input to ask the users for their first name $($save in variable firstname$)$ and their last name $($saved in lastname$).$ Assign a variable initials with the first letter of the first name and the first letter of the last name. Print a message saying "Your initials are $\_\_".$

Make sure that the initials are in upper case before they are printed, to allow a user to enter them any way they want.

Test your program with the name "glen miller".