urvashi2809 / pattern-doublesidedarrow

Pattern-DoubleSidedArrow

Take N as input. For a value of N=7, we wish to draw the following pattern :

                        1 
                    2 1   1 2 
                3 2 1       1 2 3 
            4 3 2 1           1 2 3 4 
                3 2 1       1 2 3 
                    2 1   1 2 
                        1 

Input Format - Take N as input.

Constraints - N is odd number.

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

Sample Input 7

Sample Output 1 2 1 1 2 3 2 1 1 2 3 4 3 2 1 1 2 3 4 3 2 1 1 2 3 2 1 1 2 1

Explanation Catch the pattern and print it accordingly.