Please using only printf function to print out this shape:
* *** ***** ******* ********* ******* ***** *** *
Hidden content!* * ***** * *** * * * *int main (void){* * * * * * * * * * * *** * * * * * * *** * * * * * * * ** ** * * *******\n ** ** * ** ** ** * * ** * * ** * * * ** * * * * * }