n, s = map(int, input().split())
p = list(map(int, input().split()))

ans = []
ansnum = 0

for i in range(n):
    flag = True
    for j in range(n):
        if i == j:
            continue

        elif i != j:
            if s >= abs(p[i] - p[j]):
                flag = False
                break

    if flag:
        ans.append(i + 1)
        ansnum += 1

print(ansnum)
print(" ".join(map(str, ans)))