#include <bits/stdc++.h>

using namespace std;
#define rep(i, n, o) for(int i = o;i < (n);i++)
#define ou(x) cout << x << endl
#define ll long long
#define re return 0

int main(){
    int n;
    cin >> n;
    std::vector<int> d(n);
    rep(i, n, 0) cin >> d[i];
    string s;
    rep(i, n, 0){
        s = '9';
        rep(j, d[i] - 1, 0) s += '0';
        ou(s);
    }
    re;
}