import java.util.ArrayList;
import java.util.List;
import java.util.Scanner;
public class Main1 {
public static void main(String[] args) {
List<Integer> list=new ArrayList<>();
Scanner sc=new Scanner(System.in);
int total=sc.nextInt();//有1-N个学生
int countNum=sc.nextInt();//从1数到countNum时,指定的同学出局
int arr[]=new int[total];
for(int i=0;i<arr.length;i++) {
arr[i]=i+1;
}
int left=total;
int index=0;
int count=0;