as = gets.chomp.split.map &:to_i
count = 0
as.each {|a|
    reply = 0

    is_un_div_able = false
    if a % 3 == 0
        reply += "Fizz".size
        is_un_div_able = true
    end
    if a % 5 == 0
        reply += "Buzz".size
        is_un_div_able = true
    end
    if not is_un_div_able
        reply = a.to_s.size
    end

    count += reply
}
p count