#include<bits/stdc++.h> using namespace std; int main(){ int n; cin>>n; for(int i=1;i<=n;i++){ for(int m=1;m<=n-i;m++){ cout<<" "; } for(int j=1;j<=i*2-1;j++){ cout<<"*"; } cout<<endl; } for(int i=n-1;i>=1;i--){ for(int m=1;m<=n-i;m++){ cout<<" "; } for(int j=1;j<=i*2-1;j++){ cout<<"*"; } cout<<endl; } }