RosettaCodeData/Task/Square-but-not-cube/BCPL/square-but-not-cube.bcpl

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get "libhdr"
let square(x) = x * x
let cube(x) = x * x * x
let start() be
$( let c, s, seen = 1, 1, 0
while seen < 30 do
$( while cube(c) < square(s) do c := c + 1
if square(s) ~= cube(c) then
$( writed(square(s), 5)
seen := seen + 1
if seen rem 5 = 0 then wrch('*N')
$)
s := s + 1
$)
$)