Help with basic programming tasks

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C#

Basic

Hi! I am really new to programming and I don't understand a lot. I got some school homework and I really need help with it! Would be lovely if one kind soul could help me.

Task 1:
Ask the user for input (int) and using an if ... else statement, you will print different messages
depending on user input.
Is input an even number (2,4,6,8 ...) should it write "It is an even number".
Is the input an odd talk (1,3,5,7 ...) should it write "It is an odd number".
(tips: use modulus)


Task 2:
Use a pre-loop to print 0-9
Also, create a While loop in the same project to print 0-9 once more after the pre-run is complete
Also, print which loop you are using.

Task 3:
Create a program that receives text input from the user.
The user writes should then be printed 5 times and after the text it should be what cycle the loop is
on.
For example. The user writes "Hello" and the program prints it out 5 times

Task 4:
Create an application where "Main" should look like this:

public static void main ()
{

SayHello ();
SayGoodBye ();

}

SayHello and SayGoodBye are methods / features that you must define and which should be called from you Main.

As I said, would be lovely if I could get some help!

I am supposed to use Visual Studio with Console App (.NET Framework)

What I have tried:

Not much since I do not understand anything ):