Envío 5789

Código

import java.io.*;
import java.util.StringTokenizer;

class Main
{
    public static void main(String[] args) throws IOException{
        BufferedReader bf = new BufferedReader(new InputStreamReader(System.in));
        StringTokenizer st;
        st = new StringTokenizer(bf.readLine());
        long cantidad = Integer.parseInt(st.nextToken());
        long x = Integer.parseInt(st.nextToken());
        long y = Integer.parseInt(st.nextToken());
        long diferencia = Math.abs(y-x);
        if(x>y){
            if(cantidad/2<Math.abs(x-y)){
                System.out.println(Math.abs(cantidad-x));
            }else{
                System.out.println(Math.abs(x-y));
            }
        }else{
            if(cantidad/2<Math.abs(x-y)){
                System.out.println(diferencia-1);
            }else{
                System.out.println(diferencia);
            }   
        }
    }
}