loop do
    x, y, s = gets.split.map(&:to_i)
    break if x == 0 && y == 0 && s == 0
    max = 0
    1.upto(s-1) do |i|
        1.upto(s-1) do |j|
            next if (i * (x + 100) / 100).floor + (j * (x + 100) / 100).floor != s
            max = [max, (i * (y + 100) / 100).floor + (j * (y + 100) / 100).floor].max
        end
    end
    puts max
end