#include<bits/stdc++.h>
using namespace std;
int a[110];
int main()
{
    int n;scanf("%d",&n);
    int s=0;
    for(int i=1;i<=n;i++)scanf("%d",&a[i]),s+=a[i];
    s=s/n;
    int ans=0; 
    for(int i=1;i<=n;i++)if(a[i]!=s){a[i+1]+=a[i]-s;ans++;}
    printf("%d\n",ans);
    return 0;
}