function F1 {
 param ($n, $a)
 if (F2($a)) {
   "$n is old enough to vote"
 } else {
   "$n is too young to vote"
 }
}
function F2 {
 param ($var)
 if ($var -gt 17) {
   $true
 } else {
   $false
 }
}
[string]$name = "Joe"
[int]$age = 25
F1 $name, $age