#include<iostream> // cin\cout\endl #include<cstdio> //scanf()\printf() #include<cstring> // strcpy()\strcat()\strcmp()\strlen()\memset() #include<cmath> //sqrt()\pow()\abs()\ceil()\floor()\max()\min() using namespace std; int main(){ int n; cin>>n; for(int i=1;i<=n;i++){ for(int j=1;j<=(n-i)*2;j++){ cout<<" "; } for(int j=1;j<=i*2-1;j++){ cout<<"*"; } cout<<endl; } for(int i=1;i<=n;i++){ for(int j=1;j<=(n-1)*2;j++){ cout<<" "; } cout<<"*"<<endl; } return 0; }