ماالخطأ في كودي لهذه المشكلة؟؟؟

Question

You have a robot-barman and his goal is to neatly arrange drinks on the shelves of the bar. He is very smart and takes as many drinks as are necessary to evenly distribute them on the shelves, but he still has problems with division.

The program installed in the robot takes the number of drinks and the number of the shelves as input.
Complete the program to evenly distribute the drinks on shelves: by dividing the number of drinks by the number of shelves and outputting the result.
The program must also, handle those two possible problems:
1. the divider (the number of shelves) should never be zero
2. both inputs should be integers.
For the first exception, the program should output "At least 1 shelf" and for the second, "Please insert an integer".

Answer 1

static void Main(string[] args)
{
try
{
int drinks = Convert.ToInt32(Console.ReadLine());
int shelves = Convert.ToInt32(Console.ReadLine());

//your code goes here
int result = drinks / shelves;
Console.WritLine(result);

}
/*
* 1. DivideByZeroException => "At least 1 shelf"
* 2. FormatException => "Please insert an integer"
*/
catch (DivideByZeroException e)
{
Console.WritLine("At least 1 shelf");
}
catch (FormatException e)
{
Console.WritLine ("Please insert an integer");
}