Problem: Levko loves permutations very much. A permutation of length n is a sequence of distinct positive integers, each is at most n.

Let’s assume that value gcd(a, b) shows the greatest common divisor of numbers a and b. Levko assumes that element pi of permutation p1, p2, ... , pn is good if gcd(i, pi) > 1. Levko considers a permutation beautiful, if it has exactly k good elements. Unfortunately, he doesn’t know any beautiful permutation. Your task is to help him to find at least one of them.

Input

The single line contains two integers n and k (1 ≤ n ≤ 105, 0 ≤ k ≤ n).

Output

In a single line print either any beautiful permutation or -1, if such permutation doesn’t exist.

If there are multiple suitable permutations, you are allowed to print any of them.

Examples

Input

4 2


Output

2 4 3 1

Input

1 1


Output

-1

Note

In the first sample elements 4 and 3 are good because gcd(2, 4) = 2 > 1 and gcd(3, 3) = 3 > 1. Elements 2 and 1 are not good because gcd(1, 2) = 1 and gcd(4, 1) = 1. As there are exactly 2 good elements, the permutation is beautiful.

The second sample has no beautiful permutations.

Solution (in PYTHON3):

Solution:
import math
def main():
    n,k = map(int,input().split())
    if n==k or n==k-1:
        print("-1")
        exit()
    if n==k+1:
        for i in range(n):
            print(i+1,end=" ")
        exit()
    if n==k+2:
        print(n,end=" ")
        for i in range(n-2):
            print(i+2,end=" ")
        print(1)
        exit()
    l=[]
    for i in range(k+1):
        l.append(i+1)
    for i in range(k+1,n-1):
        l.append(i+2)
    if math.gcd(10000,k+2)>1:
        l.append(1)
        l[0]=k+2
    else:
        l.append(k+2)
    print(*l)
if __name__ == '__main__':
    main()