Interesting Patterns : PLSQL

declare
total_counter1 number :=&10;
total_counter2 number :=&10;

i  number :=1;
j  number :=1;

begin
  <<outerloop>>
  for i in 1..total_counter1
    loop
      <<inneroop>>
       for j in reverse 1..i
         loop
           dbms_output.put('- ');
         end loop innerloop;
       dbms_output.put_line(i);
  
   end loop outerloop;
   
i  :=1;
j   :=1;
begin
  <<outerloop>>
  for i in 1..total_counter1
    loop
      <<inneroop>>
       for j in  i..total_counter2
         loop
           dbms_output.put('- ');
         end loop innerloop;
       dbms_output.put_line(i);
  
   end loop outerloop;
end; 
end;

                                   output