一直出現WA....不曉得哪裡有問題

#include <stdio.h>
#include <stdlib.h>
int main(void)  
{    
    int a,b,c;  
    while(scanf(" %d %d %d",&a,&b,&c)!=EOF)    
    {       
       
        if (a>b && a>c)
        {
          
           if (a>(b+c))
           {
              printf("A\n");         
           }   
           else
           {
               if (b>c)   
               {
                  printf("B\n");           
               }
               else
               {
                  printf("C\n"); 
               }
           }
          
        }
       
        else if (b>a && b>c)
        {
           
           if (b>(a+c))
           {
              printf("B\n");         
           }   
           else
           {
               if (a>c)   
               {
                  printf("A\n");           
               }
               else
               {
                  printf("C\n"); 
               }
           }
        }
       
        else if (c>b && c>a)
        {
          
           if (c>(a+b))
           {
              printf("C\n");         
           }   
           else
           {
               if (b>a)   
               {
                  printf("B\n");           
               }
               else
               {
                  printf("A\n"); 
               }
           }
       
        }
       
    } 
    return 0;
}

原本那樣在值很大的時候會出錯

至於為什麼我就不知道了......