#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=n-i;j>=1;j-=1){ cout<<" ";} for(int j=2;j<=i*2;j+=1){ cout<<"*";} cout<<endl;} for(int i=1;i<=n;i++){ for(int j=n-i+1;j<=n;j+=1){ cout<<" ";} for(int j=2*n-2*i-1;j>=1;j-=1){ cout<<"*";} cout<<endl;} return 0; }