codeforces346 Div.2 A.Round House

课间水一水，CCF备战
 1 package com.company.cf346;
 2 
 3 import java.io.InputStreamReader;
 4 import java.util.Scanner;
 5 
 6 /**
 7  * Created by Admin on 2016/4/5.
 8  */
 9 public class a {
10     public static void main(String[] args){
11         Scanner sc = new Scanner(new InputStreamReader(System.in));
12         int n, a, b;
13         n = sc.nextInt();
14         a = sc.nextInt();
15         b = sc.nextInt();
16         int ans = 0;
17         if(b < 0){
18             while(b < 0){
19                 b = b + n;
20             }
21             b = b % n;
22             ans = (a + b) % n;
23         }else {
24             ans = (a + b) % n;
25         }
26         if(ans == 0)
27             ans = n;
28         System.out.println(ans);
29     }
30 }