powershell, 80 bytes

Result

WA

Duration

1304ms

Code [DL]

$a =(Read-Host)
$b=@()
$b+=(Read-Host)-$a
$b+=(Read-Host)-$a
$b+=(Read-Host)-$a

stdin

87 79 01
23 56 38
54 26 16
50 84 56

stdout

87 79 01
23 56 38
54 26 16
50 84 56

stderr

Cannot convert value "23 56 38" to type "System.Int32". Error: "Input string was not in a correct format."
At line:3 char:1
+ $b+=(Read-Host)-$a
+ ~~~~~~~~~~~~~~~~~~
+ CategoryInfo          : InvalidArgument: (:) [], RuntimeException
+ FullyQualifiedErrorId : InvalidCastFromStringToInteger
 
Cannot convert value "54 26 16" to type "System.Int32". Error: "Input string was not in a correct format."
At line:4 char:1
+ $b+=(Read-Host)-$a
+ ~~~~~~~~~~~~~~~~~~
+ CategoryInfo          : InvalidArgument: (:) [], RuntimeException
+ FullyQualifiedErrorId : InvalidCastFromStringToInteger
 
Cannot convert value "50 84 56" to type "System.Int32". Error: "Input string was not in a correct format."
At line:5 char:1
+ $b+=(Read-Host)-$a
+ ~~~~~~~~~~~~~~~~~~
+ CategoryInfo          : InvalidArgument: (:) [], RuntimeException
+ FullyQualifiedErrorId : InvalidCastFromStringToInteger
 

strace