int main()
{
	int A,B,C,i;int words[4];char rank[3];
	for(A=0;A<=2;A++){
		for(B=0;B<=2;B++){
        if(A==B)continue;
		C=3-A-B;//??????
		words[1]=(B>A)+(C==A);
		words[2]=(A>B)+(A>C);
        words[3]=(C>B)+(B>A);//???????????
		if(words[1]+A==2&&words[2]+B==2&&words[3]+C==2)//????????????????????????3
		{
			rank[A]='A';
			rank[B]='B';
			rank[C]='C';
	}}}
			cout<<rank[0]<<rank[1]<<rank[2];//????
		return 0;
}
