must be written with languages C only not c++

2) Here, the user provides an array of characters that the programmer will show in an X pattern. The array can only be 1-9 characters long but can be any characters the user chooses. Again, see example below (20 points). Input ! @ #S Output @ @ ## The characters will be stored in lines in an input file. Your input file is cp2.txt. You will read in the characters from the input file - the characters will be separated by white space. An example of an input file is below (the first line has 3 characters, so your output X will consist of those three characters, the 2nd line has four characters, so your output X will consist of those four characters): 2e1 !@#S