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