Swift Program to read integer from user and print (Type 3)

Program

print("Enter an integer number:")
var a:Int = 0
let inpStr = readLine()
if let tmpInpStr = inpStr {
    if let tmpInpInt = Int(tmpInpStr) {
        a = tmpInpInt
    }
}
print("Value entered by user: \(a)")

Output

$ swift read_integer_from_user.swift 
Enter an integer number:
56
Value entered by user: 56