$a =(Read-Host).Split() $b =(Read-Host).Split() $c =(Read-Host).Split() $d =(Read-Host).Split() foreach($i in 0..2){ $b[$i]-=$a[$i] $c[$i]-=$a[$i] $d[$i]-=$a[$i] } echo($b) echo($c) echo($d) echo(($b[0]*$c[1]))