#include <bits/stdc++.h>
using namespace std;

void solve()
{
    int n;
    cin >> n;
    
    if(n % 2 == 1)
    {
        for(int i = 0; i < n; i++)
            cout << "1 ";
        cout << endl;
        return;
    }
    
    cout << "2 6 ";
    for(int i = 0; i < n - 2; i++)
        cout << "4 ";
    cout << endl;
}

int main() {
    // your code goes here
    int t;
    cin >> t;
    
    
    while(t--)
        solve();
}