#include <vector>
#include <cstdio>
#include <iostream>

using namespace std;

#define ABS(a) ((a) < 0 ? -(a) : (a))

int main () {
    int n, x1, y1, x2, y2;

    scanf ("%d %d %d %d %d", &n, &x1, &y1, &x2, &y2);

    if (y1 == 0 && y2 == n || y1 == n && y2 == 0) {
        printf ("%d", n + min (x1 + x2, n - x1 + n - x2));
    } else if (x1 == 0 && x2 == n || x1 == n && x2 == 0) {
        printf ("%d", n + min (y1 + y2, n - y1 + n - y2));
    } else {
        printf ("%d", ABS(x1-x2) + ABS(y1-y2));
    }

    return 0;
}