## https://yukicoder.me/problems/no/2870


def main():
    N, K = map(int, input().split())

    if N % K == 0:
        n = N // K

        answer = []
        for k in range(K):
            for _ in range(n):
                answer.append(k + 1)
        print(" ".join(map(str, answer)))
    else:
        print(-1)



if __name__ == '__main__':
    main()