Problem: You are given an array, you have to find the closest integer to its average, look it has to be closest,not just the truncated version of the average.

Input: First line contains n , number of elements of array, next line contains n integer separated by a space, which are elements of the array.

Output: Print output according to given condition.See Sample output.

Constraints: 1≤n≤100

1≤ element of array ≤ 1000 

Sample Input: 2

10 15

Sample Output: 

12

n = int(input())
a = sum(map(int, input().split())) / n
print(int(a) + 1 if a % 1 > 0.5 else int(a))