#include <bits/stdc++.h>
using namespace std;
int n;
int main() {
  int x1, y1, x2, y2;
  cin >> n >> x1 >> y1 >> x2 >> y2;
  if ((x1 <= y1 && x2 <= y2) || (x1 >= y1 && x2 >= y2))
    cout << abs(x1 - x2) + abs(y1 - y2);
  else
    cout << min(4 * n - x1 - x2 - y1 - y2, x1 + x2 + y1 + y2);
}
