a = gets.to_s.split.map(&:to_i)
while a[0] <= a[1]
    if a[0] % 3 == 0
        puts a[0]
    else
        str = a[0].to_s
        str.length.times do |i|
            if str[i] == "3"
                puts a[0]
                break
            end
        end
    end
    a[0] += 1
end