#include <bits/stdc++.h>

using namespace std;

using ll = long long;

constexpr char newl = '\n';

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

    int n;
    cin >> n;
    for (int i = 0; i < n; i++) {
        int d;
        cin >> d;
        cout << (d == 1 ? "10" : "9" + string(d - 1, '0')) << newl;
    }

    return 0;
}