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

def check(n):
    count = 0
    for i in A:count += i <= n
    return count >= K

ng,ok = -1,10**9
while(ok - ng > 1):
    mid = (ok+ng)//2
    if(check(mid)):
        ok = mid
    else:
        ng = mid

ans = []
for i in range(1,N):
    if(A[i-1] <= ok and A[i] > ok):
        ans.append(i+1)
print(len(ans))
print(*ans)