#include<bits/stdc++.h> 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<=i;j++) { cout<<"*"; } cout<<endl; } for(int i=n-1;i>=n-n;i--) { for(int k=1;k<=n-i;k++) { cout<<" "; } for(int j=0;j<i;j++) { cout<<"*"; } cout<<endl; } }