#include <bits/stdc++.h> using namespace std; int main() { int n; cin >> n; for(int i = 1; i<=n; i++) { for(int k = 1;k<=n-i;k++){ cout << " "; } for(int j = 1; j<=i; j++) { cout << "*"; } cout << endl; } for(int i = n-1; i>=1; i--) { for(int k = 1;k<=n-i;k++){ cout << " "; } for(int j = i; j>=1; j--) { cout << "*"; } cout << endl; } return 0; }