n, m = map(int, input().split())
A = list(map(int, input().split()))
L = []
R = []
A = [(a, i) for i, a in enumerate(A, 1)]
A.sort(reverse = True)
t = 0
for _, i in A:
    if t:
        L.append(i)
    else:
        R.append(i)
    t ^= 1
ans = L[::-1] + R
ind = ans.index(1)
ans = ans[ind:] + ans[:ind] + [1]
print(*ans)