from collections import Counter

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

C = counter(A)
t = 0
for a, v in sorted(list(C.items())):
  t += v
  if t == K:
    break

res = []
for i in range(N - 1):
  if A[i] <= a and A[i + 1] > a:
    res.append(i + 2)

print(len(res))
print(*res)