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 C# (Mono 4.6.2.0) (judge verdict: Accepted)

using System;
using System.Collections.Generic;
using System.Linq;

namespace AtCoder
{
	class Program
	{
		static void Main(string[] args)
		{
			var Instance = new RemainingTime();
			Instance.Exec();
		}
	}

	public class RemainingTime
	{
		public void Exec()
		{
			var sw = new System.IO.StreamWriter(Console.OpenStandardOutput()) { AutoFlush = false };
			Console.SetOut(sw);

			var inputLongArray = Console.ReadLine().Split(' ').Select(i => long.Parse(i)).ToArray();
			int a = (int)inputLongArray[0];
			int b = (int)inputLongArray[1];

			int time = a + b;
			time = time > 23 ? time - 24 : time;
			string result = $"{time}";

			Console.WriteLine(result);

			Console.Out.Flush();

			Console.ReadKey();
		}
	}
}