Modify the C program so that input characters are command line arguments.

#include

#include

int main$()\{$

char ch;

int valid $=1$;

printf$("$Enter input: $")$;

while $(($ch $=$ getchar$())!=\text{'}$

$\text{'})\{//$ scan input

if $($isalpha$($ch$))\{//$ checks for capital

if $(!$islower$($ch$))\{//$ checks for lowercase

valid $=0$;

break;

$\}$

$\}$ else if $(!$isdigit$($ch$)$ && ch $!=\text{'}\text{'}$ && ch $!=\text{'}!\text{'}$ && ch $!=\text{'}?\text{'}$ && ch $!=\text{'}.\text{'})\{//$ if anything else than invalid

valid $=0$;

break;

$\}$

$\}$

Input characters are command line argument.

Character handling library functions in ctype.h are allowed.

The program should also check if the number of arguments on the command line is greater than $2($including $./$a$.$out as one of the arguments$).$ If the number of arguments is not greater than $2,$ the program should print "invalid number of arguments".

Follow the format of the examples below.

Examples $($your program must follow this format precisely$)$

Example #$1$

$ $./$a$.$out spring$\_24$

invalid

Example #$2$

$ $./$a$.$out $8$ little pigs!

valid