package net.doorstuck.test

cout put:'Finds the sum of a set of numbers.'.

sum = 0.

while true do
    cout print:'Number (blank to finish): '.
    cout flush.

    v = 0.
    input = cin readLine.

    if input == '' then
        break
    end

    v = Int parse:input.

    if v == null then
        cout put:'{input} is not a valid number.'.
        continue
    end

    sum += v.
end

cout put:'Sum: {sum}'