N, K = map(int, input().split())
# if N not in [4, 6, 8, 12, 20]:
#     print(-1)
#     exit()
# if N <= 3:
#     print(-1)
#     exit()
if N % K != 0:
    print(-1)
    exit()
a = N // K
ans = [1]*a
for i in range(N-a):
    ans.append(2)
print(*ans)