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:
#	!/usr/bin/env python3
#	encoding: UTF-8
#	Modified: <09/Jun/2019 03:26:50 PM>


#	✪ H4WK3yE乡
#	Mohd. Farhan Tahir
#	Indian Institute Of Information Technology (IIIT), Gwalior


from __future__ import division, print_function
import sys


if sys.version_info.major == 2:
    from future_builtins import ascii, filter, hex, map, oct, zip
    range = xrange


def get_array(): return list(map(int, sys.stdin.readline().split()))


def get_ints(): return map(int, sys.stdin.readline().split())


def input(): return sys.stdin.readline().strip()


def main():
    n = int(input())

    def primes_sieve(limit):
        a = [True] * limit                       # Initialize the primality list
        a[0] = a[1] = False

        for (i, isprime) in enumerate(a):
            if isprime:
                yield i
                for n in range(i * i, limit, i):     # Mark factors non-prime
                    a[n] = False
    primes = list(primes_sieve(n + 1))
    # print(primes)
    arr = [0] * (n + 1)
    curr = 1
    for i in range(2, n + 1):
        if (arr[i] != 0):
            continue
        j = i
        while j <= n:
            arr[j] = curr
            j += i
        curr += 1
    print(*arr[2:])


if __name__ == "__main__":
    main()