#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 k=1;k<=i*2-1;k++){ cout<<"*"; } cout<<endl; } for(int i=n-1;i>=1;i--){ for(int j=1;j<=n-i;j++){ cout<<" "; } for(int k=1;k<=i*2-1;k++){ cout<<"*"; } cout<<endl; } return 0; }