int main()
{
	int A,B,C,As,Bs,Cs,m,n,p;
	for(A=1;A<=3;A=A+1)
	{
		for(B=1;B<=3;B=B+1)
		{
			for(C=1;C<=3;C=C+1)
			{
				As=(B>A)+(C==A);
				Bs=(A>B)+(A>C);
				Cs=(C>B)+(B>A);
				if(!(A<=B&&As<=Bs||A<=C&&As<=Cs||B<=A&&Bs<=As||B<=C&&Bs<=Cs||C<=A&&Cs<=As||C<=B&&Cs<=Bs))
				{
					m=A;
					n=B;
					p=C;
				}
			}
		}
	}
	if(m>=n&&n>=p)
	{
		cout<<"CBA"<<endl;
	}
	if(m>=p&&p>=n)
	{
		cout<<"BCA"<<endl;
	}
	if(n>=m&&m>=p)
	{
		cout<<"CAB"<<endl;
	}
	if(n>=p&&p>=m)
	{
		cout<<"ACB"<<endl;
	}
	if(p>=m&&m>=n)
	{
		cout<<"BAC"<<endl;
	}
	if(p>=n&&n>=m)
	{
		cout<<"ABC"<<endl;
	}
	return 0;
}