def getBeforeTax(afterTaxAmount, taxRateBefore, a0)
    a1 = (a0 * (100 + taxRateBefore) / 100).floor
    b1 = afterTaxAmount - a1
    (1..b1).each do |b0|
        b1Tem = (b0 * (100 + taxRateBefore) / 100).floor
        if b1Tem == b1
            return b0
        end
    end
    return nil
end

input_data = gets.chomp.split(" ")
taxRateBefore = input_data[0].to_i
taxRateAfter = input_data[1].to_i
afterTax = input_data[2].to_i

while taxRateBefore != 0 do 
    price = []
    (1..(afterTax/2)).each do |a0|
        b0 = getBeforeTax(afterTax, taxRateBefore, a0)
        if b0 == nil
            next
        end
        a2 = (a0 * (100 + taxRateAfter) / 100).floor
        b2 = (b0 * (100 + taxRateAfter) / 100).floor
        price.push(a2 + b2)
    end
    
    puts price.max

    input_data = gets.chomp.split(" ")
    taxRateBefore = input_data[0].to_i
    taxRateAfter = input_data[1].to_i
    afterTax = input_data[2].to_i
end
