#include <iostream>
#include <cstdio>
#include <vector>
using namespace std;

int n, i, p;
vector <vector <int> > a;
vector <int> k;
int alpha [2];

void gen(vector <int> k, int p)
{
    if (p == n)
        a.push_back(k);
    else
        for (i = 0; i < 2; i++)
            if ((alpha[i - 1] == 0)||(alpha[i] == 0))
            {
                k.push_back(alpha[i]);
                gen(k, p + 1);
                k.pop_back();
            }
}

int main()
{
    freopen ("vectors.in", "r", stdin);
    freopen ("vectors.out", "w", stdout);

    cin >> n;

    k.resize(n);
    for (i = 0; i < n; i++)
        k[i] = 0;
    alpha[0] = 0;
    alpha[1] = 1;

    p = 1;
    gen(k, p);

    return 0;
}