class FizzBuzz
    attr_reader :n

    def initialize(n: 0)
        @n = n
    end

    def datainput
        begin
            @n = Integer(gets.chomp)
        rescue
            
        end
    end

    def fizzbuzz(n)
        (1..n).each do |i|
            if i % 3 == 0 and i % 5 == 0
                puts "FizzBuzz"
            elsif i % 3 == 0
                puts "Fizz"
            elsif i % 5 == 0
                puts "Buzz"
            else
                puts i
            end
        end
    end

    def dataoutput
        fizzbuzz(@n)
    end

    def run
        datainput
        dataoutput
    end
end

if $0 == __FILE__
    FizzBuzz.new.run
end