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 PYTHON):

Solution:
#import sys
#sys.stdin = open('in')
def gcd (a, b):
    if a < b:
        return gcd(b, a)
    else:
        if b == 0:
            return a
        else:
            return gcd(b, a % b)

n, k = map(int,raw_input().split())
if k == n:
    print -1
else:
    m = [str(i) for i in range(1, n + 1)]
    x2 = n - 1 - k
    for i in range(x2/2):
        m[2*(i + 1)],m[2*i + 1] = m[2*i + 1],m[2*(i + 1)]
    if x2 & 1 > 0:
        m[0], m[-1] = m[-1], m[0]
    print ' '.join(m)