class PiggyBank
    attr_reader :l, :m, :n

    def initialize(l: 0, m: 0, n: 0)
        @l, @m, @n = l, m, n
        @bill1000 = 0
    end

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

    def moneyexchange(coin100, coin25, coin1)
        # １円
        coin25 += coin1 / 25
        coin1 = coin1 % 25
        # ２５円
        coin100 += coin25 / 4
        coin25 = coin25 % 4
        # １００円
        @bill1000 += coin100 / 10
        coin100 = coin100 % 10

        [coin100, coin25, coin1].inject(:+)
    end

    def dataoutput
        puts moneyexchange(@l, @m, @n)
    end

    def run
        datainput
        dataoutput        
    end
end

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