Can anyone help me with this hour glass pattern in C++? [closed]

Take N as input. For a value of N=5, we wish to draw the following pattern :

                      5 4 3 2 1 0 1 2 3 4 5
                        4 3 2 1 0 1 2 3 4 
                          3 2 1 0 1 2 3 
                            2 1 0 1 2 
                              1 0 1 
                                0 
                              1 0 1 
                            2 1 0 1 2 
                          3 2 1 0 1 2 3 
                        4 3 2 1 0 1 2 3 4 
                      5 4 3 2 1 0 1 2 3 4 5

Input Format Take N as input.

Constraints N <= 20

Output Format Pattern should be printed with a space between every two values.

Sample Input 5 Sample Output 5 4 3 2 1 0 1 2 3 4 5 4 3 2 1 0 1 2 3 4 3 2 1 0 1 2 3 2 1 0 1 2 1 0 1 0 1 0 1 2 1 0 1 2 3 2 1 0 1 2 3 4 3 2 1 0 1 2 3 4 5 4 3 2 1 0 1 2 3 4 5 strong text