#include <bits/stdc++.h>
using namespace std;
#define int long long
typedef pair<int,int> P;
int INF = 3e18+7;
int mod = 998244353;
int dx[] = {1, 0,-1, 0, 1, 1,-1,-1};
int dy[] = {0, 1, 0,-1, 1,-1, 1,-1};
signed main() {
    int N;
    cin >> N;
    vector<int>d(N);
    for(int i = 0; i < N; i++) {
        cin >> d[i];
        if(d[i] == 1) {
            cout << 10 << endl;
            continue;
        }
        cout << 9;
        for(int j = 0; j < d[i]-1; j++) {
            cout << 0;
        }
        cout << endl;
    }
}