PROGRAM 
  { 
  Program 
  PROGRAM-NAME 
    identifier Sample1
  FUNCTION-DEFINITIONS 
    FUNCTION-DEFINITIONS 
    FUNCTION-DEFINITION 
      { 
      Function 
      FUNCTION-NAME 
        identifier facto
      ARGUMENTS 
        ARGUMENTS 
        ARGUMENT 
          identifier VAL
      STATEMENTS 
        STATEMENT 
          IF-STMT 
            { 
            if 
            EXPRESSION 
              { 
              COMPARISON-OPERATOR 
                < 
              PARAMETER 
                identifier VAL
              PARAMETER 
                NUMBER 
                  integer 0
              } 
            then 
            STATEMENTS 
              STATEMENT 
                ASSIGNMENT-STMT 
                  { 
                  = 
                  identifier retVal
                  PARAMETER 
                    NUMBER 
                      integer -1
                  } 
            else 
            STATEMENTS 
              STATEMENTS 
                STATEMENT 
                  ASSIGNMENT-STMT 
                    { 
                    = 
                    identifier retVal
                    PARAMETER 
                      NUMBER 
                        integer 1
                    } 
              STATEMENT 
                WHILE-STMT 
                  { 
                  while 
                  EXPRESSION 
                    { 
                    COMPARISON-OPERATOR 
                      > 
                    PARAMETER 
                      identifier VAL
                    PARAMETER 
                      NUMBER 
                        integer 0
                    } 
                  do 
                  STATEMENTS 
                    STATEMENTS 
                      STATEMENT 
                        ASSIGNMENT-STMT 
                          { 
                          = 
                          identifier retVal
                          PARAMETER 
                            FUNCTION-CALL 
                              { 
                              PREDEFINED-FUNCTION 
                                * 
                              PARAMETERS 
                                PARAMETERS 
                                  PARAMETERS 
                                  PARAMETER 
                                    identifier retVal
                                PARAMETER 
                                  identifier VAL
                              } 
                          } 
                    STATEMENT 
                      ASSIGNMENT-STMT 
                        { 
                        = 
                        identifier VAL
                        PARAMETER 
                          FUNCTION-CALL 
                            { 
                            PREDEFINED-FUNCTION 
                              - 
                            PARAMETERS 
                              PARAMETERS 
                                PARAMETERS 
                                PARAMETER 
                                  identifier VAL
                              PARAMETER 
                                NUMBER 
                                  integer 1
                            } 
                        } 
                  } 
            } 
      return 
      RETURN-ARG 
        identifier retVal
      } 
  STATEMENTS 
    STATEMENT 
      FUNCTION-CALL 
        { 
        PREDEFINED-FUNCTION 
          print 
        PARAMETERS 
          PARAMETERS 
          PARAMETER 
            FUNCTION-CALL 
              { 
              FUNCTION-NAME 
                identifier facto
              PARAMETERS 
                PARAMETERS 
                PARAMETER 
                  NUMBER 
                    integer 999
              } 
        } 
  } 



=======The following is the output of the symbol table as the data appears in the table=======
----------------------------------------------------------------------------------------------
TOKEN NAME         IDENTIFIER TYPE                                     IDENTIFIER VALUE
----------------------------------------------------------------------------------------------
facto              function-name function-name
VAL                argument expression-id expression-id argument assignment-id argument
retVal             assignment-id assignment-id assignment-id argument return-arg 
Sample1            program-name