You are given a 5-letter word (for example, abcde). Write a C-Program which outputs all possible unique 5 letter permutations of this word in a text file. There should be no repetition of letters in permutation (i. e. in our example, bacde is a valid permutation but bbcde is invalid). Use of library functions for generation of permutations is NOT allowed. The text file containing the output should be named as q3out. txt. Each word of the output must be on a separate line in the text file. The 5-letter input word should be read by your program from the console. Provide comments in your code. Submit your C code, and the q3out. txt file for the following inputs: (a) parba (b) arbcq