#include <iostream>
#include <vector>;

using namespace std;

int n,i,a,s,k,l;

vector<int>x;

int main()
{
    cin>>n;
    for(i=1;i<=n;++i)
    {
        cin>>a;
        s+=a;
        x.push_back(a);
    }
    k=s/n;

    for(i=0;i<x.size();++i)
    {
        if(x[i]>k)
        {
            x[i+1]+=x[i]-k;
            x[i]-=x[i]-k;
            ++l;
        }
        else if(x[i]<k)
        {
            x[i+1]-=k-x[i];
            x[i]+=k-x[i];
            ++l;
        }
        else if(x[i]==k) continue;
    }
    cout<<l;

    return 0;
}