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Exercise:Create one variable named
@(2) = 5;
@(2) = 7;
@(4) @(2) + @(2);
$x = 5;
$y = 7;
echo $x + $y;
$y = 5;
$x = 7;
echo $x + $y;
$x = 5;
$y = 7;
echo $y + $x;
$y = 5;
$x = 7;
echo $y + $x;
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