#include<iostream>
#include<string>
#include<vector>

using namespace std;

int main(){
    int n;
    cin >> n;
    vector<string> ans(n,"");
    for(int i=0;i < n;i++){
        int d;
        cin >> d;
        if(d == 1) {ans[i] = "10";continue;}
        else{
            ans[i] = "9";
            for(int j=1;j < d;j++){
                ans[i] += '0';
            }
        }
    }
    for(auto x: ans) cout << x << endl;
    return 0;
}