declare

   myCID binary_integer;
   myLname varchar2(40);
   myFname varchar2(40);


begin
  dbms_output.enable;
  
  myCID := 21;
  myLname := 'DOGGAN';
  myFname := 'ASHLEE';
    
  insert into customers values(myCID, myLname, myFname);
  
  
end;
/