N = int(input())
pos = [-1]*(N+1)
for n in range(1, N+1):
    if pos[n] != -1:
        continue
    
    if n > N/2 and pos[n] == -1:
        pos[n] = n
        continue
    candidates = []
    for j in range(1, N+1):
        if n*j*j > N:
            break
        if pos[n*j*j] == -1:
            candidates.append(n*j*j)
    L = len(candidates)
    for l in range(L):
        pos[candidates[l]] = candidates[L-l-1]
    #print('n', n, 'candidates', candidates, 'pos', pos)
print(*pos[1:])