#include <bits/stdc++.h>
typedef long long ll;
#define rep(i,m,n) for(ll i = (m); i < (n); i++)
#define rrep(i,m,n) for(ll i = (m); i >= (n); i--)
#define print(x) cout << (x) << endl;
#define print2(x,y) cout << (x) << " " << (y) << endl;
#define printa(x,n) for(ll i = 0; i < n; i++){ cout << (x[i]) << " \n"[i == n-1];}
#define printp(x,n) for(ll i = 0; i < n; i++){ cout << "(" << x[i].first << ", " << x[i].second << ") "; } cout << endl;
#define INF (1e18 + 7)
using namespace std;
const ll MOD = 1e9 + 7;
typedef pair<ll, ll> lpair;

int main(){
    cin.tie(0);
    ios::sync_with_stdio(false);
    ll N;
    cin >> N;
    if(N % 3 == 2){
        cout << 3 << " ";
        rep(i,0,N-1){
            cout << 1 << " \n"[i == N-2];
        }
    }else if(N % 3 == 0){
        cout << 3 << " ";
        rep(i,0,N-2){
            cout << 1 << " ";
        }
        cout << 3 << endl;
    }else{
        cout << 3 << " ";
        rep(i,0,N-2){
            cout << 1 << " ";
        }
        cout << 2 << endl;
    }
    


 }