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