def rc()
  while true
    x,y,s = gets.split(' ').map(&:to_i)
    break if [x,y,s] == [0,0,0]
    c = []
    for i in 1..s-1
      a = i
      for j in 1..s-1
        b = j
        if a*(100+x)/100 + b*(100+x)/100 == s
          c << a*(100+y)/100 + b*(100+y)/100
        end
      end
    end
    puts c.max
  end
end

rc()