$5-$ Create a program in C named prime. The program should read a line from the

standard input stream. The line should be a non$-$empty sequence of decimal dig

its, that is$,$ ASCII characters in the range $0-9,$ terminated by an end$-$of$-$line mark.

The program should convert the digit sequence to a big integer. To do that, the

program can multiply values in the range $0.\mathrm{.}9$ by powers of ten and sum them up$.$

The program should test the big integer for primality. Then the program should

write to the standard output stream a line consisting of $(1)$ the sequence of deci

mal digits, $(2)$ a space, and $(3)$ the message "probably prime" or "composite" as

appropriate. The program should repeat until end$-$of$-$file of the standard input

stream.

If the prime program reads $0$ from the standard input stream, then the program

should write to the standard output stream a line consisting of $0,$ a space, and the

message "neither". Similarly, if the prime program reads $1$ from the standard in

put stream, then the program should write to the standard output stream a line

consisting of $1,$ a space, and the message "neither". If the program reads a mal

formed line from the standard input stream, then it should write to the standard

output stream a line consisting of $(1)$ the sequence of decimal digits, $(2)$ a space,

and $(3)$ the message "malformed". Then it should continue.