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