import sys
input = lambda :sys.stdin.readline()[:-1]
ni = lambda :int(input())
na = lambda :list(map(int,input().split()))
yes = lambda :print("yes");Yes = lambda :print("Yes");YES = lambda : print("YES")
no = lambda :print("no");No = lambda :print("No");NO = lambda : print("NO")
#######################################################################

n,k = na()

if n % k == 0:
    ans = [1] * (n//k)
    for i in range(n - n//k):
        ans.append(i + 2)
    print(*ans)
else:
    print(-1)