#include <bits/stdc++.h>
using namespace std;

int main()
{
	int N;
	cin >> N;

	for( int i = 0; i < N; i++ ) {
		int d;
		cin >> d;
		string ans = "9";
		for( int j = 0; j < d - 1; j++ ) ans += "0";
		if( d == 1 ) ans = "10";
		cout << ans << endl;
	}
}