Task 1 (25 points) Modify mycat.c so it will read in content of a file, convert lowercase letters to uppercase letters and write the output to standard output. Name your source file taski.c Hint: you can use basic number arithmetic to convert a lower case letter to an upper case letter. If you need the ascii table, it can be found here. Your program should work like this. 117@uxb4: $ gcc-Wall taskl.c-o taskl 117@uxb4:-$./taskl story.txt ARY HAS A DOG PETER HAS A CAT TOM HAS A RABIT