1 IF
 The IF statement evaluates a conditional expression and transfers  program
 control, depending on the resulting value.

 Examples

 IF A > 0
   THEN PRINT A
   ELSE PRINT "A IS NOT GREATER THAN 0"
 END IF
 PRINT A IF A > 0

2 Syntax

 Conditional:

     IF cond-exp THEN  {statement} [ELSE {statement...}] [END IF]

 Statement Modifier:

     statement IF cond-exp