//ic210 section 4002
//16 oct 2009
//arrays and functions: passing an array to a function and 
//returning an array from a function

#include <iostream>
#include <fstream>
#include <string>
using namespace std;

int computeSum(int* , int);
int* readInts(int, istream&);

int main() 
{
	ifstream fin("numbers");

	/* Open input file, read header, get N = # of int's */
	int N;
	string s;
	cin >> N;

	/* Create array A and read N int's from input */
	int * A = readInts(N,cin);

	
	//compute sum
	int sum = computeSum(A, N);

	// Print out the average
	cout << "The avg is "
		<< sum/double(N) << endl;

	return 0;
}

int computeSum(int* A, int N)
{
	int sum = 0;
	/* Cycle through array summing all the elements */
	for(int j = 0; j < N; j++)
	{
		sum = sum + A[j];
	}

	return sum;

}



int* readInts(int N, istream& IN)
{
	int *A = new int[N];
	for(int i = 0; i < N; i++)
		IN >> A[i];

	return A;
}