Hello Monks! This is my current code. I currently have data saved in this aarray which was originally taken from a 2d array. Right now, I'm trying to make a general list such that if i put "2,4:3,5" it should try to generate a rectangular coordinate of 2,4 2,5 3,4 3,5. But now i realize this won't work if someone puts "2,4:5,2" or "8,5:3:2". any ideas 
foreach $element (@list_of_Num_Extraction)
   {
      if ($element =~ m/^([0-9]+),([0-9]+)$/)
      {
         my $first_num     = $1;
         my $second_num    = $2;
         my $current_num   = ($first_num - 1)*$NumOfColumns + $second_
+num; 

         $Unique_Num_List{$current_num} = "($first_num,$second_num)";
      } 
      elsif ($element =~ m/^([0-9]+),([0-9]+):([0-9]+),([0-9]+)$/)
      {
         my $num1x = $1;
         my $num1y = $2;
         my $num2x = $3;
         my $num2y = $4;

         my $counter1 = 0;
         my $counter2 = 0;

         foreach $counter1 ($num1x .. $num2x) {
         foreach $counter2 ($num1y .. $num2y) {
            
            my $current_num   = ($counter1 - 1)*$NumOfColumns + $count
+er2;
            $Unique_Num_List{$current_num} = "($counter1,$counter2)";
            #print "$counter1 - $counter2 \n"; 
         }}
      }
   }

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In reply to Extraction of List of Coordinates by EchoAngel

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