int main()
{
    int a, b, c;
    int A, B, C;
    for(a = 1; a <= 3; a++)                        //A??? 
    {
          for(b = 1; b <= 3; b++)                  //B??? 
          {
                for(c = 1; c <= 3; c++)            //C??? 
                {
                      if(a != b || a != c || b != c)
                      {
                           A = (b > a) + (c == a);                    //ABC???? 
                           B = (a > b) + (a > c);
                           C = (c > b) + (b > a);
                           if(A == 2 && a == 1 && B == 1 && b ==2 && C ==0 && c == 3)
                                  cout << "A" << "B" << "C" << endl;
                           if( A == 2 && a == 1 && B == 0 && b == 3 && C == 1 && c == 2)
                                  cout << "A" << "C" << "B" << endl;
                           if( A == 1 && a == 2 && B == 0 && b == 3 && C == 2 && c == 1)
                                  cout << "C" << "A" << "B" << endl;
                           if( A == 1 && a == 2 && B == 2 && b == 1 && C == 0 && c == 3)
                                  cout << "B" << "A" << "C" << endl;
                           if( A == 0 && a == 3 && B == 1 && b == 2 && C == 2 && c == 1)
                                  cout << "C" << "B" << "A" <<endl;
                           if( A == 0 && a == 3 && B == 2 && b == 1 && C == 1 && c == 2)
                                  cout << "B" << "C" << "A" << endl;
                      }
                }
          }
    }
    return 0;
}