while true
    rateA,rateB,s = gets.split(" ").map(&:to_i)
    break if rateA ==0 && rateB == 0 && s == 0
    a=[]
    $roop = 1
    for i in 1..s
        sa = i*(100+rateA)/100
        (1..s-i).to_a.reverse.each do |j|
            sb = j*(100+rateA)/100
            if a.index([j,i]) != nil
                $roop = 0
                break
            end
            if sa + sb == s
                a.push([i,j])
            end
        end
        break if $roop == 0
    end
    maximum = 0
    for i in 0..a.length-1
        b = [maximum, a[i][0]*(100+rateB)/100 + a[i][1]*(100+rateB)/100]
        maximum = b.max
    end
    puts(maximum)
end