Problem:
Score : 200 points

Problem Statement

In some other world, today is the day before Christmas Eve.

Mr. Takaha is buying N items at a department store. The regular price of the i-th item (1 \leq i \leq N) is p_i yen (the currency of Japan).

He has a discount coupon, and can buy one item with the highest price for half the regular price. The remaining N-1 items cost their regular prices. What is the total amount he will pay?

Constraints

2 \leq N \leq 10

100 \leq p_i \leq 10000

p_i is an even number.

Input

Input is given from Standard Input in the following format:

N
p_1
p_2
:
p_N

Output

Print the total amount Mr. Takaha will pay.

Sample Input 1

3
4980
7980
6980

Sample Output 1

15950

The 7980-yen item gets the discount and the total is 4980 + 7980 / 2 + 6980 = 15950 yen.

Note that outputs such as 15950.0 will be judged as Wrong Answer.

Sample Input 2

4
4320
4320
4320
4320

Sample Output 2

15120

Only one of the four items gets the discount and the total is 4320 / 2 + 4320 + 4320 + 4320 = 15120 yen.

Solution in Fortran (gfortran v4.8.4) (judge verdict: Wrong Answer)

program jihanki
  implicit none
  integer :: n, i, k
  integer, allocatable :: p(:)
  integer :: price

  read(*,*)n
  allocate(p(n))
  do i=1,n
     read(*,*)p(i)
  end do

  do i=1, n
     if (k==0) then
        if (p(i)==maxval(p)) then
           price=price+p(i)/2.0
           k=1
        else
           price=price+p(i)
        end if
     else
        price=price+p(i)
     end if
  end do

  write(*,*)price
  
end program jihanki