/******************************************************************************

                              Online C++ Compiler.
               Code, Compile, Run and Debug C++ program online.
Write your code in this editor and press "Run" button to compile and execute it.

*******************************************************************************/

#include <iostream>

using namespace std;
void spatiu(int v){

            for(int j = 0; j < v; j++){
       cout << " ";
            }
}

void isoscel(int x){
    string a = "#";
    string s = " ";
    string b = a + s;
    int baza = x;
    spatiu(x/2);
    cout << a << endl;
    while(x != 0){
        if(x < 3){
            for(int h = 0; h < baza; h++){
                cout << "#";
            }
            b = "";
        }
        spatiu(x/2 -1);
        cout << b + a << endl;
        b = b + s + s;
        x = x - 2;
    }
}
int main()
{
   isoscel(20);

    return 0;
}