I need this in C# only

Assignment1C: Creating NetIDs! As a KSU student, you should have your own NetID - the username you use to log into your email, D2L, and the lab computers among other KSU systems. While your real NetID is assigned to you by the school, in this program you will have the ability to generate and output your own custom NetID (for fun only, of course)! The rules for a KSU NetID are as follows: First letter of your first name Your full last name A positive whole number, such as 12 The largest possible whole number value for this program is 9999. As an example, a student named Scrappy Owl might have the NetID sowl1234. Your task for this assignment is to prompt the user to enter the three pieces of required information. You must then store those values in the most efficient variable data type possible. You will not receive full points if you use a variable type that is larger than necessary - consult the slides on data types to determine the best one for each value. Hint: Each of the three user-inputted variables should have a different data type. Once the data has been entered and stored, you should concatenate the three values and print the results to the user