#include <iostream>

using namespace std;

int n;
int a[10005];

int main()
{
	cin >> n;
	int sum = 0;
	for(int i = 1;i <= n;i++)
	{
		cin >> a[i];
		sum += a[i];
	}
	sum /= n;
	int cnt = 0;
	for(int i = 1;i < n;i++)
	{
		if(a[i] != sum)
		{
			a[i] = sum;
			a[i + 1] = a[i + 1] - (sum - a[i]);
			cnt++;
		}
	}
	cout << cnt;
	return 0;
}