while true
    x, y, s = gets.chomp.split.map(&:to_i)
    break if [x, y, s] == [0, 0, 0]

    arr = []
    for x2 in 1...s
        arr[x2 * (x + 100) / 100] = [] if arr[x2 * (x + 100) / 100].nil?
        arr[x2 * (x + 100) / 100] << x2
    end

    max = nil
    for x2 in 1...s
        y2 = s - x2
        xarr = arr[x2]
        yarr = arr[y2]
        if !xarr.nil? && !yarr.nil?
            xarr.product(yarr){|a, b| max = a * (y + 100) / 100 + b * (y + 100) / 100 if max.nil? || max < a * (y + 100) / 100 + b * (y + 100) / 100}
        end
    end
    puts max
end
