n,k=map(int,input().split())
L=list(map(int,input().split()))

def f(x):
	cnt=0
	for e in L:
		if e<=x:
			cnt+=1
	if cnt==k:
		return -1
	else:
		if k<cnt:
			return 1
		else:
			return 0

l,r=0,10**9+1
while 1:
	m=(l+r)//2
	x=f(m)
	if x==-1:
		break
	else:
		if x:
			r=m-1
		else:
			l=m+1

ans=[]
for i in range(1,n):
	if L[i-1]<=m and m<L[i]:
		ans.append(i+1)
print(len(ans))
print(*ans)