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$ perl -Mstrict -Mwarnings -E '
my @a = ( 1 .. 10 );
...
sub transform (&@) { map $_[ 0 ]->( $_ ), @_[ 1 .. $#_ ] }'
2 3 4 5 6 7 8 9 0 1
$

$ perl -Mstrict -Mwarnings -E '
my @a = ( 1 .. 10 );
...
sub transform (&) { $_[ 0 ]->( $_ ) }'
2 3 4 5 6 7 8 9 10 11
$

$ perl -Mstrict -Mwarnings -E '
my @a = ( 1 .. 10 );
...
sub transform (&) { $_[ 0 ]->( $_ ) }'
2 3 4 5 6 7 8 9 0 1
$