Loop Limit in a Variable

Here is the improved program, with the change part way made:

' First ask the user for how many numbers are going to be added.
' Then ask the user for each number, one by one.
' Add them up, print the sum.
'
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LET SUM = 0
LET COUNT = 1
DO WHILE COUNT <=  HOWMANY
  PRINT "Enter a number"       
  INPUT NUMBER                 
  LET SUM = SUM + NUMBER    
  LET COUNT = COUNT + 1
LOOP
PRINT "The sum is", SUM
END

You may wish to look at a previous example to get an idea about how to make the change.