#include <iostream>
#include <string>
using namespace std;

int main() {
	int n;
	cin >> n;
	
	for (int i = 0; i < n; i++) {
		int d;
		cin >> d;
		if (d == 1) {
			cout << 10 << endl;
		}
		else {
			string s = "9";
			for (int j = 0; j < d - 1; j++) s += '0';
			cout << s << endl;
		}
	}
	return 0;
}