/*
 * Histogram
 * SER 2016
 * by Dennis Matveyev 
 */
#include <iostream>
#include <string>
using namespace std;

const string s = string(100, '=');

int main()
{	
	int n, len;
	cin >> n;
	
	while (n-- && cin>>len)
	    cout << s.substr(0, len) << endl;
	
	return 0;
}