#line 1 "main.cpp"
#include <iostream>

using namespace std;

void solve() {
    int n;
    cin >> n;

    if (n == 1) {
        cout << 10 << "\n";
        return;
    }

    cout << 9;
    --n;

    while (n--) cout << 0;
    cout << "\n";
}

int main() {
    cin.tie(nullptr);
    ios::sync_with_stdio(false);

    int q;
    cin >> q;
    while (q--) solve();

    return 0;
}