Keeping HUE in Range

Here is the program. Fill in the blanks so that the bug is fixed.

' Draw 100 circles, each in a new color
'
SCREEN 12
'
LET HUE = 4
LET COUNT = 1
'
DO WHILE COUNT <= 100
'
  LET HUE = HUE + 1
'
  IF _________________ THEN
    LET HUE = _________________ 
  END IF
'
  COLOR  HUE
  CIRCLE (320, 240),50
  SLEEP 1
'
  LET COUNT = COUNT + 1
LOOP
'
END