#include<iostream>
using namespace std;
int K;
main()
{
	cin>>K;
	for(int i=0;i*(i-1)/2<=K;i++)
	{
		int t=K-i*(i-1)/2;
		int s=1;
		for(int j=1;j*j<=t;j++)
		{
			if(t%j==0)s=j;
		}
		if(i+s+t/s<=250)
		{
			cout<<i+s+t/s<<endl;
			for(int j=0;j<i;j++)cout<<"1 ";
			for(int j=0;j<s;j++)cout<<"3 ";
			for(int j=0;j<t/s;j++)cout<<"8 ";
			cout<<endl;
			return 0;
		}
	}
}