#include #include<stdio.h> #include #include<math.h> #include<string.h> #define ll longlong const int N=1e5+10; const int INT=0x3f3f3f3f; using namespace std; int main() {

int n, pos, l, r;
cin >> n >> pos >> l >> r;
if (l == 1 && r == n) {
    cout << 0 << endl;
    return 0;
}
if (l == 1) {
    int time = abs(pos - r) + 1; 
    cout << time << endl;
    return 0;
}
if (r == n) {
    int time = abs(pos - l) + 1; 
    cout << time << endl;
    return 0;
}
int option1 = abs(pos - l) + 1 + (r - l) + 1; 
int option2 = abs(pos - r) + 1 + (r - l) + 1; 
int minTime = min(option1, option2);
cout << minTime << endl;
return 0;

}