#include<iostream>
#include<vector>
#include<algorithm>
#include<cmath>
#include<string>
#include<iomanip>
#include<numeric>
#include<queue>
#include<deque>
#include<stack>
#include<set>
#include<map>
#include<random>
using namespace std;
typedef long long ll;
const int mod=1e9+7;
int main(){
	int n,d;
	cin>>n;
	while(cin>>d)
		if(d==1)
			cout<<10<<endl;
		else
			cout<<9<<string(d-1,'0')<<endl;
}