import java.util.*;
 
 
public class Main {
 
 
    public static void main(String[] args){
        Scanner input = new Scanner (System.in);
        int t = input.nextInt();
        int n , k ; 
        for (int i = 0; i < t; i++) {
            n=input.nextInt();
            k=input.nextInt();
            if (k < n/2)
                System.out.println(2*k +1);
            else 
                System.out.println(2*(n-1-k));
        }
 
    }
}