# include<iostream> # include<cstring> # include<cstdio> using namespace std; int main(){ int n; cin>>n; for(int i=n;i>=1;i--){ for(int j=n-i;j>=1;j--)cout<<" "; for(int j=i*2-1;j>=1;j--)cout<<"*"; cout<<endl; }for(int i=2;i<=n;i++){ for(int j=1;j<=n-i;j++) cout<<" "; for(int j=1;j<=i*2-1;j++) cout<<"*"; cout<<endl; } return 0; }