

int main()
{
	int a = 0;
	int b = 0;
	int c = 0;
	char temp[3];

	for( a = 0;a<=2;a++ )
	{
		for( b = 0;b<=2;b++)
	    {
			if(a!=b)
			{
				c=3-a-b;
			
			
				if( ( b > a ) + ( c == a ) == 2 - a
					&& ( b < a ) + ( a > c ) == 2 - b
					&& ( c > b ) + ( b > a ) == 2 - c )
				{
					temp[a] = 'A';
					temp[b] = 'B';
					temp[c] = 'C';

					cout << temp[0] << temp[1] << temp[2] ;
				}
			}

			
	    }
	}



	return 0;

}