# https://yukicoder.me/problems/no/2774



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

    a_array = [(i, A[i]) for i in range(N)]

    a_array.sort(key=lambda x: x[1])
    sleep = []
    border = -1
    for j in range(K):
        i0, y = a_array[j]
        sleep.append(i0)
        border = y

    sleep.sort()
    answer = []
    for i in sleep:
        if i < N - 1 and border < A[i + 1]:
            answer.append(i + 2)
    
    print(len(answer))
    print(" ".join(map(str, answer)))









if __name__ == "__main__":
    main()