/**
 *   @FileName	a.cpp
 *   @Author	kanpurin
 *   @Created	2020.11.20 21:21:52
**/

#include "bits/stdc++.h" 
using namespace std; 
typedef long long ll;

int main() {
    int n;cin >> n;
    for (int i = 0; i < n; i++) {
        int d;cin >> d;
        if (d == 1) {
            cout << 10 << endl;
            continue;
        }
        cout << 9;
        for (int j = 0; j < d-1; j++) {
            cout << 0;
        }
        cout << endl;
    }
    return 0;
}