#include<iostream>
#include<algorithm>
#include<cstdio>
#include<cstring>
#include<string>

using namespace std;
typedef long long ll;

int main()
{
	ll k;
	while(cin >> k)
	{		
		if(k <= 1e5)
		{
			cout <<k << endl;
			for(int i = 1; i <= k; i++)
			{
				printf( "1" );
				if(i == k) printf( "\n" );
				else printf( " " );
			}
			continue;
		}
		ll a, b, c=0;
		int flag = 0;
		while(1)
		{
			ll s = k + c*c + c + 1;
			for(int i = c + 1; i*i <= s; i++)
			{
				a = i;
				if(s%a != 0)continue;
				b = s / a;
				if(b < c + 1)continue;

				if(a + b - c - 2 <= 1e5)
				{
					flag = 1;
					break;
				}
			}
			if(flag) break;
			else c++;
		}

		cout << a + b - c - 2 << endl;
		for(int i = 1; i <= a - c - 1; i++)
			printf( "1 " );
		for(int i = 1; i < b - c - 1; i++)
			printf( "2 " );
		if(c == 0) printf( "2\n" );
		else
		{
			printf( "2 " );
			for(int i = 1; i < c; i++)
				printf( "3 " );
			printf( "3\n" );
		}
	}
	return 0;
}

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