#include<bits/stdc++.h> using namespace std; int main() { int n; cin >> n; for(int i = 1; i<=n;i++) { for (int j = 1; j<=n-i; j++) { cout << " "; } for(int j=1; j<= 2*i-1;j++){ cout << "*"; } cout << endl; } for(int i = 1; i<=n-1;i++) { for (int j = 1; j<=i; j++) { cout << " "; } for(int j=1; j<= 2*n-2*i-1;j++){ cout << "*"; } cout << endl; } return 0; }