var nn = 1'000'000'000
var count = 0
var sum = 0

function Func{ second_number[int] } return int
is
  (second_number + 3) * 5
end function

(% Calculate sum with a loop %)
do
  do
    sum = sum + Func(count),
    count = count + 1
  until nn < count
unless nn = 0 done,

print "Sum from 0 to" & nn & "is" & sum