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@a = qw(a b c d e);
$b = @a[1,3];
print $b
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@a = qw(a b c d e);
$b = @a[1];
print $b
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@a = qw(a b c d e);
@b = @a[1];
$b = @b
print $b
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@a = qw(a b c d e);
$b = scalar @a[1,3];
print $b
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@a = qw(a b c d e);
$b = @a[3,1];
print $b