1 #include<iostream>
2 #include<cstdio>
3 #include<cstring>
4 using namespace std;
5 int main(){
6 int n,k;
7 while(~scanf("%d%d",&n,&k)){
8 if(n == 1 && k > 0 || k < n / 2) printf("-1\n");
9 else if(n == 1 && k == 0) printf("1\n");
10 else{
11 if(k == n/2){
12 for(int i = 1;i < n;i ++) printf("%d ",i);
13 printf("%d\n",n);
14 }else{
15 int tmp = k - n/2 + 1;
16 printf("%d %d",tmp,2*tmp);
17 for(int i = tmp*2 + 1;i < tmp *2 + n - 1;i ++) printf(" %d",i);
18 printf("\n");
19 }
20 }
21 }
22 return 0;
23 }
