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 OCaml (4.02.3) (judge verdict: Runtime Error)

let rec search x y m cd index ans = 
if cd = [] 
then 
    ans
else
    let (c,d) = (List.hd cd)  in
    let dis = abs(x-c) + abs(y-d) in
    if dis <= m 
    then
        search x y dis (List.tl cd) (index-1) index
    else
        search x y m (List.tl cd) (index-1) ans;;


let n,m = Scanf.scanf "%d %d " (fun a b -> a,b) in 
let rec loop i= 
    if i <= 0 
    then
         [] 
    else
        (Scanf.scanf "%d %d " (fun a b -> a,b)) :: loop (i-1) in
let ab = List.rev (loop n) in 
let cd = loop m in
let rec loop2 ls = 
    match ls with
        |[] -> () 
        |(a,b)::tail ->  Printf.printf "%d\n" (search a b 1000000000 cd m 0);loop2 tail in
loop2 ab;;