#include <iostream>
using namespace std;

int main() {
    int n=4;

    //top
    for(int i=0;i<n;i++){
        //spaces
        for(int j=0;j<n-i-1;j++){
            cout<<" ";
        }

        cout<<"*";
    
        if(i !=0){
          //spaces
        for(int j=0;j<2*i-1;j++){
            cout<<" ";
        }
        
        cout<<"*";
    }
        cout<<endl;
    }
    
    //bottom
    for(int i=0;i<n-1;i++){
        //spaces
        for(int j=0;j<i+1;j++){
            cout<<" ";
        }

        cout<<"*";
    
        if(i !=n-1){
          //spaces
        for(int j=0;j<2*(n-i)-5;j++){
            cout<<" ";
        }
        
        cout<<"*";
    }
    cout<<endl;    
}      
        
    return 0;
}