F# program to find Modulus of two numbers using Try Catch

Program

open System
Console.Write("Enter the first number:\t")
let a = Int32.Parse(Console.ReadLine())
Console.Write("Enter the second number:\t")
let b = Int32.Parse(Console.ReadLine())
let modulus =  try 
                    let modulo = a % b
                    Console.WriteLine("Modulus of two numbers is:\t{0}" , modulo); 1
                with 
                | :? System.DivideByZeroException as ex -> Console.WriteLine(ex.Message); 0

Output 1

Enter the first number: 54
Enter the second number:        4
Modulus of two numbers is:      2

Output 2

Enter the first number: 1
Enter the second number:        8
Modulus of two numbers is:      1

Output 3

Enter the first number: 678
Enter the second number:        0
Attempted to divide by zero.