#include <bits/stdc++.h>   using namespace std;   int main() {     ios_base::sync_with_stdio(false);     cin.tie(NULL);     cout.tie(NULL);     ;     int t;     cin >> t;     while (t--) {       int n;       cin >> n;       for (long long int i = (long long int)0; i < (long long int)n; i++)         cout << i + 1 <<    n [i == n - 1];     }     return 0;   }   