Problem:
Score : 100 points

Problem Statement

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.

Constraints

0 \leq A,B \leq 23

A and B are integers.

Input

The input is given from Standard Input in the following format:

A B

Output

Print the hour of the starting time of the contest in 24-hour time.

Sample Input 1

9 12

Sample Output 1

21

In this input, the current time is 9 o'clock, and 12 hours later it will be 21 o'clock in 24-hour time.

Sample Input 2

19 0

Sample Output 2

19

The contest has just started.

Sample Input 3

23 2

Sample Output 3

1

The contest will begin at 1 o'clock the next day.

Solution in PHP7 (7.0.15) (judge verdict: Accepted)

<?php
    /*
        Problem URL : http://abc057.contest.atcoder.jp/tasks/abc057_a

        Score  :
        Result :
        Time   : ms
        Memory : KB
     */

    ini_set('error_reporting', E_ALL & ~E_NOTICE);

    // define('DEBUG', true);
    define('DEBUG', false);

    if (DEBUG) {
        $start = microtime(true);
    }
    echo solve() . PHP_EOL;
    if (DEBUG) {
        $t = microtime(true) - $start;
        printf ("Elapsed time: %7.3f sec\n", $t);
    }


    function solve() {
        fscanf(STDIN, "%d %d\n", $A, $B);
        return (($A + $B) % 24);
    }