#include <cmath>
#include <deque>
#include <algorithm>
#include <iterator>
#include <list>
#include <tuple>
#include <map>
#include <unordered_map>
#include <queue>
#include <set>
#include <unordered_set>
#include <stack>
#include <string>
#include <vector>
#include <fstream>
#include <iostream>
#include <functional>
#include <numeric>
#include <iomanip> 
#include <stdio.h>
//eolibraries
#define lnf 3999999999999999999
#define inf 999999999
#define PI 3.14159265359
#define endl "\n"
#define fi first
#define se second
#define pb push_back
#define eb emplace_back
#define ll long long
#define all(c) (c).begin(),(c).end()
#define sz(c) (ll)(c).size()
#define mkp(a,b) make_pair(a,b)
#define make_unique(a) sort(all(a)),a.erase(unique(all(a)),a.end())
#define rsz(a,n) a.resize(n)
#define pii pair <ll,ll>
#define rep(i,n) for(int i = 0 ; i < n ; i++) 
#define drep(i,n) for(int i = n-1 ; i >= 0 ; i--)
#define crep(i,x,n) for(int i = x ; i < n ; i++)
#define vi vector <ll> 
#define vec(s) vector<s>
#define rsz(a,n) a.resize(n)
#define rszv(a,n,v) a.resize(n,v)
#define fcin ios_base::sync_with_stdio(false),cin.tie(0),cout.tie(0);
//eodefine
 
const ll max_n = 1000002;
 
using namespace std;
ll mod=998244353;

//modarth
ll binpow(ll a, ll b) {  
  a %= mod; ll res = 1; 
  while (b) { if (b%2) res = res * a % mod; a = a * a % mod; b /= 2; } 
  return res % mod;
}
ll prod(ll a , ll b){
  a%=mod; b%=mod;
  return ((a*b)%mod);
}

ll add(ll a , ll b){
  a%=mod; b%=mod;
  return (a+b)%mod;
}
//modarth


vec(pii) primefact[max_n+10];

void fprimefact() {
  vi p;
  p.resize(max_n+10,0);
  
  for(int i = 2 ; i*i < max_n ; i++){
    if(p[i] == 0) {
      for(int j = i*i ; j <= max_n ; j += i) p[j] = i;
    }
  }
  
  for(int i=2;i<=max_n;i++) if(p[i]==0)p[i]=i;
  
  for(int i = 2 ; i <= max_n ; i++) {
	    int x=i,cnt=0;
	    while(x!=1) {
            int y=p[x],pup=y;
            if(y==0) break;
            cnt=0;
            while(y!=0 and x%y==0) {x/=y;cnt++;}
            primefact[i].pb({pup,cnt});
	    }
  	}

}




int nmp[max_n],mp[max_n];

void merg(int x,int y) {
    for(auto p:primefact[x]) { nmp[p.fi]=0; }
    for(auto p:primefact[y]) { nmp[p.fi]=0; }
    
    for(auto p:primefact[x]) {
        nmp[p.fi]=p.se; 
    }
    for(auto p:primefact[y]) {
        nmp[p.fi]+=p.se;
    }

    for(auto p :primefact[x]) mp[p.fi]=max(mp[p.fi],nmp[p.fi]);
    for(auto p :primefact[y]) mp[p.fi]=max(mp[p.fi],nmp[p.fi]);
}

int main(){
fcin;
fprimefact();

    int n;
    cin>>n;

    crep(i,1,n) {
    	if(i>n-i) break;
        merg(i,n-i);
    }
    
    ll ans=1;

    crep(i,1,max_n-3){
        if(mp[i]==0)continue;
        mp[i]=binpow(i,mp[i]);
    }
    crep(i,1,max_n-3){
        if(mp[i]==0)continue;
        ans=prod(ans,mp[i]);
    }

    cout << ans << "\n";
/*
*/
 
    return 0;   
}