#!/usr/bin/perl --
use strict; use warnings;
my $blah = '    VAR DS 0D
        DC    AL1(045),AL2(286),AL2(117),AL2(290)';

my ( $top, $bottom ) = split /[\r\n]+/, $blah;
print "$top\n";

my( $prefix, @biscuits ) = grep length, split /[\s,]+/, $bottom;

for my $tack ( @biscuits ){
    print "$prefix $tack\n";
}
__END__
    VAR DS 0D
DC AL1(045)
DC AL2(286)
DC AL2(117)
DC AL2(290)