input = gets.split(" ")
input.map! do |i|
    i.to_i
end

count = 0
input.each do |j|
    if j % 15 == 0
        count += 8
    elsif j % 3 == 0 || j % 5 == 0
        count += 4
    else
        count += j.to_s.length
    end
end
puts count