#include <iostream> using namespace std; int n,a[100001]; int main(){ cin>>n; for(int i = 1;i <=n;i++) { cin >> a[i]; } for(int i = 1;i <=n;i++) { for(int j = 1;j<=a[i];j++) { for(int k = 1;k <=a[i];k++) { if(k==j || k==a[i]-j+1) { cout << "X"; }else { cout << " "; }; } cout << endl; } cout << endl; } return 0; }