#include <bits/stdc++.h>
using namespace std;
#define all(x) x.begin(), x.end()
#define ar array
#define pb push_back
#define ln '\n'
#define size(x) (int)(x).size()
#define int long long
typedef pair <int,int> pii;
using i64 = long long;
template <class F, class _S>
bool chmin(F &u, const _S &v){
bool flag = false;
if ( u > v ){
u = v; flag |= true;
}
return flag;
}
template <class F, class _S>
bool chmax(F &u, const _S &v){
bool flag = false;
if ( u < v ){
u = v; flag |= true;
}
return flag;
}
const int inf = 1e16;
signed main(){
ios_base::sync_with_stdio(false);
cin.tie(nullptr);
int n, sx, sy, ex, ey;
cin >> n >> sx >> sy >> ex >> ey;
--sx, --sy, --ex, --ey;
if ( sx > ex ) swap(sx, ex), swap(sy, ey);
vector <int> l(n);
for ( int i = 0; i < n; i++ ){
cin >> l[i]; ++l[i];
}
if ( n == 1 ) return cout << "0\n", 0;
int opt = abs(ey - sy);
chmin(opt, sy + l[0] - ey + 1);
chmin(opt, l[0] - sy + ey + 1);
cout << opt + ex - sx;
cout << '\n';
}
