Problem: You're given an integer n. For every integer i from 2 to n, assign a positive integer a_i such that the following conditions hold:

  * For any pair of integers (i,j), if i and j are coprime, a_i ≠ a_j. 
  * The maximal value of all a_i should be minimized (that is, as small as possible). 



A pair of integers is called [coprime](https://en.wikipedia.org/wiki/Coprime_integers) if their [greatest common divisor](https://en.wikipedia.org/wiki/Greatest_common_divisor) is 1.

Input

The only line contains the integer n (2 ≤ n ≤ 10^5).

Output

Print n-1 integers, a_2, a_3, …, a_n (1 ≤ a_i ≤ n). 

If there are multiple solutions, print any of them.

Examples

Input


4


Output


1 2 1 

Input


3


Output


2 1

Note

In the first example, notice that 3 and 4 are coprime, so a_3 ≠ a_4. Also, notice that a=[1,2,3] satisfies the first condition, but it's not a correct answer because its maximal value is 3.

Solution (in PYTHON3):

Solution:
prime = []
res = {}

def Sieve(n):
    cnt = 0
    primes = {i: True for i in range(1, n+1)}
    for i in range(2, n+1):
        if primes[i]:
            cnt+=1
            res[i] = cnt
            for j in range(i*2, n+1, i):
                primes[j] = False
                res[j] = cnt
    primes[1] = False
    for i in range(1, n+1):
        if primes[i]: prime.append(i)

N = int(input())
Sieve(N)
for i in range(2, N+1):
    print(res[i], end=' ')
print()