int main()
{
    int a , b , c ;
    int words[4];
    for( a = 1 ; a <= 3 ; a ++ )                                        //???A?B?C????????1?2?3??? 
         for( b = 1 ; b <= 3 ; b ++ )
         {
              if( b != a )
              {
                  c = 6 - a - b ;                                       //c???a?b???????????6 
                  words[a] = ( b > a ) + ( c == a ) ;
                  words[b] = ( a > b ) + ( a > c ) ;
                  words[c] = ( c > b ) + ( b > a ) ;
                  
                  if( words[1] > words[2] && words[2] > words[3] )      //?????????????a?b?c????????????? 
                  {
                      char person[4] ;
                      person[0] = 0 ;
                      person[a] = 'A' ;                                 //????????????? 
                      person[b] = 'B' ;
                      person[c] = 'C' ;
                      cout << person[1] << person[2] << person[3] ;
                      break ;
                  }
              }    
         }      
return 0 ;
} 