#include <map>
#include <string>
#include <iostream>
using namespace std;

void main() {

	map<string, map<string, int>> hash;
	hash["A"]["A"] = 1;
	hash["A"]["B"] = 2;
	hash["B"]["A"] = 4;
	hash["B"]["B"] = 8;
	
	for(map<string, int>::iterator i = hash["B"].begin(); i != hash["B"].end(); i++) {
		cout << i->first << " - " << i->second << "\n";
	}
}