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 (GCC 5.4.1) (judge verdict: Runtime Error)

#include <stdio.h>
#define BUFSIZE 100

	int f(int x, int y);

	int main() {
		int n, a, b, min, r;
		scanf("%d",&n);
		if(n<1 || n>10000000000){
			printf("error\n");
			return 1;
		}
		a = 1;
		b = n;
		min = f(a,b);
		while(a < b){
			do{
				a++;
			}while(n % a != 0);
			b = n / a;
			r = f(a,b);
			if(r < min) min = r;
		}
		printf("%d",min);
		return 0;
	}
	
	int f(int x, int y){
		char buf[BUFSIZE];
		if(x >= y) return sprintf(buf,"%u",x);
		else return sprintf(buf,"%u",y);
	}