#include <bits/stdc++.h>
using namespace std;
int main(void){
    int n;
    cin >> n;
    while (n--){
        int d;
        cin >> d;
        if (d == 1){
            cout << 10 << endl;
            continue;
        }
        cout << 9;
        for (int i = 1; i < d; i++) cout << 0;
        cout << endl;
    }
}