#include <bits/stdc++.h>
using namespace std;
#define int long long
#define iii tuple<int,int,int>
#define sz(x) (int)x.size()
signed main(){
int n;cin>>n;
int sx,sy,tx,ty;cin>>sx>>sy>>tx>>ty;
vector<int> l(n+1, 0);
for(int i=1;i<=n;i++){
cin>>l[i];
l[i]++;
}
vector<array<vector<iii>, 2>> al(n+1);
vector<int> stk;
// 1-1 edges
vector<array<int,2>> d1(n+1), d2(n+1);
for(int i=1;i<=n;i++){
d1[i][0]=abs(i- sx)+sy-1, d1[i][1]=1e16;
d2[i][0]=abs(i- tx)+ty-1, d2[i][1]=1e16;
}
int ans=1e18;
for(int t=0;t<2;t++){
int i, stop, delta;
if(t==0)i=1, stop=n+1, delta=1;
else i=n, stop=0, delta=-1;
stk.clear();
for(;i!=stop;i+=delta){
while(!stk.empty() and l[stk.back()] >= l[i]){
int pi=stk.back(), pl=l[pi];
if(abs(pl-l[i]) <= 1){
al[i][1].push_back(make_tuple(pi, 1, abs(pl-l[i]) + abs(i-pi)));
}
stk.pop_back();
}
// go down
if(!stk.empty()){
int pi=stk.back(), pl=l[pi];
al[i][1].push_back(make_tuple(pi, 1, abs(pl-l[i]) + abs(i-pi)));
}
stk.push_back(i);
if(i==sx){
for(auto pi : stk){
if(pi == tx){ // s and t are in the same block
ans=abs(sx-tx) + abs(sy-ty);
}
d1[pi][1]=abs(sx-pi) + max(0ll, l[pi]-sy);
}
}
if(i==tx){
for(auto pi : stk){
d2[pi][1]=abs(tx-pi) + abs(ty-l[pi]);
}
}
}
}
//0-0 edges
for(int i=1;i<n;i++)al[i][0].push_back(make_tuple(i+1, 0, 1));
for(int i=2;i<=n;i++)al[i][0].push_back(make_tuple(i-1, 0, 1));
// 0-1 edges;
for(int i=1;i<n;i++) al[i][1].push_back(make_tuple(i+1, 0, 1));
for(int i=2;i<=n;i++)al[i][0].push_back(make_tuple(i-1, 1, 1));
priority_queue<iii,vector<iii>,greater<iii>> pq;
for(int i=1;i<=n;i++){
pq.push({d1[i][0], i, 0});
pq.push({d1[i][1], i, 1});
}
while(!pq.empty()){
auto [cd, x, y]=pq.top(); pq.pop();
if(d1[x][y] < cd) continue;
for(auto [itx, ity, w] : al[x][y]){
if(d1[itx][ity] <= cd + w)continue;
d1[itx][ity]=cd+w;
pq.push({d1[itx][ity], itx, ity});
}
}
for(int i=1;i<=n;i++){
ans=min(ans, d1[i][0] + d2[i][0]);
ans=min(ans, d1[i][1] + d2[i][1]);
}
cout<<ans;
}
