#include<bits/stdc++.h>
#include <atcoder/all>
using namespace atcoder;
using mint=modint998244353;
using namespace std;
using ll=long long;
using ul=unsigned long long;
int dx[8] = {-1, 1, 0, 0, -1, -1, 1, 1};
int dy[8] = {0, 0, -1, 1, -1, 1, -1, 1};
using Graph=vector<vector<int>>;
int main(){
   int N;
   cin>>N;
   while(N--){
    int c;
    cin>>c;
    if(c==1){cout<<10<<endl;continue;}
    cout<<'9';
    for(int i=0;i<c-1;i++)cout<<'0';
    cout<<endl;
   }
}