#include "bits/stdc++.h"
//#include<boost/multi_array.hpp>
//#include<boost/optional.hpp>
//#include<boost/range/irange.hpp>
//#include<boost/range/algorithm.hpp>
//#include<boost/range/adaptors.hpp>
using namespace std;
using ll = long long;
using ld = long double;
using P = pair<int, int>;
#define rep(i, n) for(int i = 0; i < (n); i++)
#define rep2(i, x, n) for(int i = x; i < (n); i++)
#define all(n) begin(n), end(n)
// struct cww{cww(){ios::sync_with_stdio(false);cin.tie(0);}}star;
const long long INF = numeric_limits<long long>::max();

ll mod = 1000000007;

void Main() { //
    int n;
    cin >> n;
    vector<int> d(n);
    rep(i, n) cin >> d[i];
    rep(i, n) {
        if(d[i] == 1){
            cout << 10 << endl;
            continue;
        }
        cout << 9;
        rep(j, d[i] - 1) { cout << 0; }
        cout << endl;
    }
} //

int main() {
    std::cin.tie(nullptr);
    std::ios_base::sync_with_stdio(false);
    std::cout << std::fixed << std::setprecision(15);
    Main();
    return 0;
}