3. Name this program count.c-The program takes a single command line argument, the name of an input file. . Your program should confirm the input file exists (exit with an appropriate error message if it does not). If the file exists, then count the number of upper-case and lower-case letters in the file. Print your counts to standard output. contents of myData The Quick Brown FoX Jumps Over the LAZY Old doG. Roll TIDE 1831! /a.out myData Uppercase 18,lowercase28