一直出現WA....不曉得哪裡有問題

#include
#include
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)) 改成a-(b+c)>0

           {
              printf("A\n");         
           }   
           else
           {
               if (b>c)   
               {
                  printf("B\n");           
               }
               else
               {
                  printf("C\n"); 
               }
           }
          
        }
       
        else if (b>a && b>c)
        {
           
           if (b>(a+c)) 改成b-(a+c)>0
           {
              printf("B\n");         
           }   
           else
           {
               if (a>c)   
               {
                  printf("A\n");           
               }
               else
               {
                  printf("C\n"); 
               }
           }
        }
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