#include<iostream>
#include<cstdio>
#include<cmath>
#include<algorithm>
#include<string>
#include<cstring>
using namespace std;
int arr[105];
int n;
int myall=0; 
int main(){
	//freopen("zhi.in","r",stdin);
	//freopen("zhi.out","w",stdout);
	cin >> n;
	for(int i=1;i<=n;i++){
		scanf("%d",&arr[i]);
		myall+=arr[i];
	}
	int a=myall/n;
	int tmp;
	int res=0;
	for(int i=1;i<n;i++){
		if(arr[i]==a) continue;
		else if(arr[i]>a){
			tmp = arr[i]-a;
			arr[i]-=tmp;
			arr[i+1]+=tmp;
			res+=1;
		}else if(arr[i]<a){
			tmp = a-arr[i];
			arr[i]+=tmp;
			arr[i+1]-=tmp;
			res+=1;
		}
	}
	cout << res;
	//fclose(stdin);
	//fclose(stdout);
	return 0;
}