#include<bits/stdc++.h> using namespace std; signed main(){ int n,a[10005],temp=0,sum=0; cin>>n; for(int i=1;i<=n;i++){ cin>>a[i]; temp+=a[i]; } temp/=n; for(int i=1;i<=n;i++){ if(a[i]<temp){ int j=i+1; for(;j<=n;j++){ if(a[i]+a[j]>=temp){ sum+=j-i; a[j]-=temp-a[i]; a[i]=temp; break; } } } else if(a[i]>temp){ a[i+1]+=a[i]-temp; a[i]=temp; sum++; } } cout<<sum; return 0; }