Envío 5831

Código

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

class Main
{
    public static void main(String[] args) throws IOException{
        BufferedReader br = new BufferedReader(new InputStreamReader(System.in));
        StringTokenizer st;
        st =  new StringTokenizer(br.readLine());
        int n = Integer.parseInt(st.nextToken());
        int t = Integer.parseInt(st.nextToken());
        int l = Integer.parseInt(st.nextToken());
        int clave = 0;
        boolean dato = true;
        while(dato){
            if(t == l){
                dato = false;
                break;
            }
            if(t<n){
                if(t!=n-1){
                    t++;
                }else{
                    t=0;   
                }
            }
            if(l<n){
                if(l==n-2){
                    l=0;
                }else if(l==n-1){
                    l=1;
                }else{
                    l+=2;
                }
            }
            clave++;
        }
        System.out.print(clave);
    }
}