Sample script that read in parameters defined in scheduled task (189230)

Parameter values are defined when adding new parameter task. How to write scripts which read in the parameters for execution? 

The below script will accept the parameters from scheduled task and create the output in mentioned path.

param([int]$a,[int]$b)

$a= $Task.DirObj.Parameters.Value("a").Value
$b= $Task.DirObj.Parameters.Value("b").Value
$a | Out-File -FilePath "C:\Home\Test.txt"
$b | Out-File -append -FilePath "C:\Home\Test.txt"
function add([int]$c,[int]$d)
{
 $var=$c+$d
 $d + $c | Out-File -append -FilePath "C:\Home\Test.txt"
 }
add -c $a -d $b