#include <bits/stdc++.h>
#define int long long
using namespace std;
 
signed main() {
    ios::sync_with_stdio(false);
    cin.tie(nullptr);
 
    int n;
    cin >> n;
    vector<int> a (n);
    vector<int> b (n);
    for (auto& x: a) cin >> x;
    for (auto& x: b) cin >> x;
 
    vector<int> delta (n);
    for (int i = 0; i < n; i++) delta[i] = b[i] - a[i];
    vector<int> flow (n);
    flow[0] = 0;
    for (int i = 1; i < n; i++) flow[i] = flow[i - 1] + delta[i - 1];
    sort(flow.begin(), flow.end());
    int rem = flow[n / 2];
    int ans = 0;
    for (auto& x: flow) ans += abs(x - rem);
    cout << ans << '\n';
}

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