#include <bits/stdc++.h>
using namespace std;

void no_1291(void){
    int n;
    cin >> n;
    vector<int> d(n);
    for (int i = 0; i < n; i++) cin >> d[i];

    for (int i = 0;i<n;i++){
        if(d[i]==1){
            cout << 10 << endl;
            continue;
        }
        cout << 9;
        for (int j = 0; j < d[i]-1;j++){
            cout << 0;
        }
        cout << endl;
    }
}

int main(void) {
    no_1291();
    return 0;
}