[100pts]
Write a program sleeping that reads a 4-digit time (HHMM, 24-hour time),
and prints out "I'm Awake!" if the time is between 0600 and 2300 (inclusive),
and "Go away, I'm asleep!" otherwise. Example of running your program:
$ ./sleeping
Time: 0330
Go away, I'm asleep!
$ ./sleeping
Time: 1650
I'm Awake!
$ ./sleeping
Time: 2301
Go away, I'm asleep!