Program to find largest of 2 numbers using PL/SQL

Program to find largest of 2 numbers using PL/SQL

Code

DECLARE
   N NUMBER;
   M NUMBER;
BEGIN
  N:=&N; --if : doesn't work use :
  M:=&M;
IF N>M THEN
 DBMS_OUTPUT.PUT_LINE(''|| N ||' IS GREATER THAN '|| M ||'');
   ELSE
 DBMS_OUTPUT.PUT_LINE(''|| M ||' IS GREATER THAN '|| N ||'');
   END IF;
  END;
/

output

7 IS GREATER THAN 5

Statement processed.