#include <iostream>
#include <string>
using namespace std;

int main()
{
    cin.tie(nullptr), ios::sync_with_stdio(false);
    int T;
    cin >> T;
    while (T--) {
        int N;
        cin >> N;
        if (N == 1) cout << "10\n";
        else cout << '9' << string(N - 1, '0') << '\n';
    }
}