#!/usr/bin/perl --
use Benchmark ':all';
my $orig = '105 106 107 108 109 110 111 112 113 220 221 223
100 101 198 199 200 201 298 299 300 301 398 399 400 401
1115 1116 1117 1118 1119 1120 1121 1122 1123 1200 1201 1202
1100 1101 1102 1198 1199 1200 1201 1202 1298 1299 1300 1301
12345 12346 12347 12348 12349 12450 12451 12453 12466 12467
12300 12301 12398 12399 12400 12401 12498 12499 12500 12501';;;


print "$]\n";
exit Verify() if @ARGV;
cmpthese( -3, {
    anoNa => \&anoNa ,
    anoNb => \&anoNb ,
    anoM  => \&anoM ,
    bukA  => \&bukA ,
    bukB  => \&bukB ,
} );
sub anoNa { $_ = $orig; s[(\d+)\d\K\s(?=(??{$1+1})\d\s)]{\n}g; }
sub anoNb { $_ = $orig; s[(?<=\s)(\d+)\d\K\s(?=(??{$1+1})\d\s)]{\n}g; }
sub anoM  { $_ = $orig; s{ (\d) \d\d \K  [^\n\S]+  (?! \d* \1 \d\d \b) }{\n}xmsg; }
sub bukA  { $_ = $orig; s[(?<=\s)(\d+)\d\K\s(?=(\d+)\d\s)]{$1+1==$2 ? qq[\n] : ' '}ge; }
sub bukB  { $_ = $orig; s[\b(\d+)\d\K\s(?=(\d+)\d\s)]{$1+1==$2 ? qq[\n] : ' '}ge; }
sub Verify {
    print "\n# anoNa \n", anoNa(),"\n"; print "$_\n\n";
    print "\n# anoNb \n", anoNb(),"\n"; print "$_\n\n";
    print "\n# anoM  \n", anoM(),"\n"; print "$_\n\n";
    print "\n# bukA  \n", bukA(),"\n"; print "$_\n\n";
    print "\n# bukB \n", bukB(),"\n"; print "$_\n\n";
}
__END__