#define _CRT_SECURE_NO_WARNINGS
#include <iostream>
#include <cmath>
#include <string>
#include <vector>
#include <algorithm>
#include <queue>
#include <map>
#include <functional>
#include <set>
#include <numeric>
#include <stack>
#include <utility>
#include <time.h>
//#include "util.h"

using namespace std;
typedef long long lint;
typedef unsigned long long ull;
typedef pair<lint, lint> Pii;

#define PI 3.14159265358979323846
#define EPS 1e-6
#define MIN(a,b) ((a)<(b)?(a):(b))
#define MAX(a,b) ((a)>(b)?(a):(b))
#define FOR(i,a,b) for (int i=(a);i<(b);i++)
#define RFOR(i,a,b) for (int i=(b)-1;i>=(a);i--)
#define REP(i,n) for (int i=0;i<(n);i++)
#define RREP(i,n) for (int i=(n)-1;i>=0;i--)

template <typename _Ty>
ostream& operator << (ostream& ostr, const vector<_Ty>& v) {
	if (v.empty()) {
		cout << "{ }";
		return ostr;
	}
	cout << "{" << v.front();
	for (auto itr = ++v.begin(); itr != v.end(); itr++) {
		cout << ", " << *itr;
	}
	cout << "}";
	return ostr;
}

template <typename _KTy, typename _Ty>
ostream& operator << (ostream& ostr, const pair<_KTy, _Ty>& m) {
	cout << "{" << m.first << ", " << m.second << "}";
	return ostr;
}

template <typename _KTy, typename _Ty>
ostream& operator << (ostream& ostr, const map<_KTy, _Ty>& m) {
	if (m.empty()) {
		cout << "{ }";
		return ostr;
	}
	cout << "{" << *m.begin();
	for (auto itr = ++m.begin(); itr != m.end(); itr++) {
		cout << ", " << *itr;
	}
	cout << "}";
	return ostr;
}

template <typename _Ty>
ostream& operator << (ostream& ostr, const set<_Ty>& s) {
	if (s.empty()) {
		cout << "{ }";
		return ostr;
	}
	cout << "{" << *(s.begin());
	for (auto itr = ++s.begin(); itr != s.end(); itr++) {
		cout << ", " << *itr;
	}
	cout << "}";
	return ostr;
}

//n % (x^3 - x)
void rem(vector<int> n)
{
	vector<int> p(4);
	p[0] = 0; p[1] = -1; p[2] = 0; p[3] = 1;

	for (int i = n.size() - 1; i >= p.size() - 1; i--) {
		int q = n[i];
		for (int j = 0; j < p.size(); j++) {
			n[i - j] -= p[p.size() - 1 - j] * q;
		}
	}

	int k;
	for (k = n.size() - 1; k > 0 && n[k] == 0; k--);
	
	cout << k << endl;
	cout << n[0];
	for (int i = 1; i <= k; i++)
		cout << " " << n[i];
	cout << endl;
}

int yuki0040()
{
	int D;
	cin >> D;

	vector<int> n(D + 1);
	for (int i = 0; i <= D; i++)
		cin >> n[i];

	rem(n);

	return 0;
}


int main()
{
	//clock_t start, end;
	//start = clock();

	yuki0040();

	//end = clock();
	//printf("%d msec.\n", end - start);

	return 0;
}