#include <bits/stdc++.h>
using namespace std;
int n,a[105];


int main()
{
	
	cin >> n;
	int t;
	for (int i = 1; i <= n; i++)
	{
		cin >> a[i];
		t+=a[i];	
	}
	
	t=t/n;
	int count = 0;
	
	for (int i = 1; i < n; i++)
	{

		if (a[i] == t) continue;
		a[i+1]+=a[i]-t;
		a[i] = t;
		count++;
	}
	cout << count;
	return 0;
} 

记录