#include<bits/stdc++.h> using namespace std; int a[120], b[51]; int main() { int n, sum1 = 0, avg = 0; cin >> n; for (int i = 0; i < n; i++) { cin >> a[i]; sum1 += a[i]; a[i + n] = a[i]; } avg = sum1 / n; int maxc = 50000; for (int i = 0; i < n; i++) { for (int j = 0; j < n; j++) { b[j] = a[i + j]; } int cnt = 0; for (int j = 0; j < n - 1 ; j++) { cnt += abs(b[j] - avg); b[j + 1] += b[j] - avg; b[j] = avg; } maxc = min(maxc, cnt); } cout << maxc; return 0; }