Score : $100$ points
Dolphin loves programming contests. Today, he will take part in a contest in AtCoder.
In this country, 24-hour clock is used. For example, $9:00$ p.m. is referred to as "$21$ o'clock".
The current time is $A$ o'clock, and a contest will begin in exactly $B$ hours. When will the contest begin? Answer in 24-hour time.
The input is given from Standard Input in the following format:
Print the hour of the starting time of the contest in 24-hour time.
In this input, the current time is $9$ o'clock, and $12$ hours later it will be $21$ o'clock in 24-hour time.
The contest has just started.
The contest will begin at $1$ o'clock the next day.