a,b=gets.split(" ").map(&:to_i)

(0..500).each{|y|
    (0..500).each{|x|
        next if x==0 && y==0
        if a==(100.0*x/(x+y)).round && b==(100.0*y/(x+y)).round
            p x+y
            exit
        end
    }}