#include <iostream>
#include <string>
#include <climits>
#include <sys/time.h>
#include "common.h"

using namespace std;

const int NPLAYOUTS=300;

//returns +turns if `me` wins, -turns if an opponent wins
int mcplayout(Board &bd,int me){
	bool lost[NPLAYERS];
	memset(lost,0,NPLAYERS*sizeof(bool));
	int nlost=0;
	int win;
	int turnidx;
	for(turnidx=1;;turnidx++){ //turnidx=1: one after `me`
		const int onturn=(me+turnidx)%NPLAYERS;
		if(lost[onturn])continue;
		if(bd.ballcount(onturn)==0){
			lost[onturn]=true;
			nlost++;
			if(nlost==NPLAYERS)break; //? someone would have won...
			continue;
		}
		bd.put(randommove(bd,onturn).idx(),onturn);
		win=bd.checkwin();
		if(win!=-1)break;
	}
	if(win==-1)return 0; //?
	if(win==me)return turnidx;
	else return -turnidx;
}

Move calcmove(Board &bd,int me){
	int i,j;
	int score,maxscore=INT_MIN,maxat=0;
	for(i=0;i<WID*HEI;i++){
		Board bd2=bd;
		if(!bd2.put(i,me))continue;
		score=0;
		for(j=0;j<NPLAYOUTS;j++)
			score+=mcplayout(bd2,me);
		if(score>maxscore){
			maxscore=score;
			maxat=i;
		}
	}
	return Move(maxat%WID,maxat/WID);
}

int main(void){
	struct timeval tv;
	gettimeofday(&tv,NULL);
	srand(tv.tv_sec*1000000+tv.tv_usec);

	Board bd;
	char c;
	Move mv;
	cin>>c; cin.ignore(1024,'\n');
	int me=c-'A';
	int x,y,i;
	while(true){
		c=cin.peek();
		if(c=='q'||c=='Q')break;
		for(i=me+1;i%NPLAYERS!=me;i++){
			cin>>x>>y;
			if(x!=-1&&y!=-1)bd.put(x,y,i%NPLAYERS);
		}
		cin.ignore(1024,'\n');
		mv=calcmove(bd,me);
		cout<<mv.x<<' '<<mv.y<<endl;
		bd.put(mv.idx(),me);
	}
}