### main

loop do
  x, y, sx = gets.split.map(&:to_i)
  break if (x | y | sx) == 0

  max_sy = 0
  for a in (1..sx)
    af = a.to_f
    ax = (af * (100 + x) / 100).to_i
    ay = (af * (100 + y) / 100).to_i
    for b in (1..sx)
      bf = b.to_f
      bx = (bf * (100 + x) / 100).to_i
      by = (bf * (100 + y) / 100).to_i
      if ax + bx == sx
        sy = ay + by
        max_sy = sy if max_sy < sy
      elsif ax + bx > sx
        break
      end
    end
  end

  puts max_sy
end