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