#include <bits/stdc++.h>
#define be(v) (v).begin(),(v).end()
#define pb(q) push_back(q)
#define rep(i, n) for(int i=0;i<n;i++)
typedef long long ll;
using namespace std;
const ll mod=1000000007, INF=(1LL<<60);
#define doublecout(a) cout<<fixed<<setprecision(10)<<a<<endl;

int main() {
    cin.tie(0);
    cout.tie(0);
    ios::sync_with_stdio(false);
    int n;
    cin >> n;
    while(n--){
        int d;
        cin >> d;
        if(d == 1){
            cout << 10 << endl;
            continue;
        }
        cout << 9;
        rep(i, d - 1) cout << 0;
        cout << endl;
    }
    return 0;
}