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