> #include <iostream>
> #include <cstring>
> using namespace std;
> 
> char Left[3][7];
> char Right[3][7];
> char Result[3][5];
> 
> //true == light false == heavy
> bool isCounterfeit(char c, bool weight)
> {
> 	for (int i = 0; i < 3; i++)
> 		switch (Result[i][0]) {
> 			case 'e':
> 				if (strchr(Left[i], c) || strchr(Right[i], c)) return false; break;
> 			case 'u': //the right side is light
> 				if (weight) { //light coin
> 					if (strchr(Right[i], c) == NULL) return false; //in the right side of the balance
> 				}
> 				else {		  //heavy coin
> 					if (strchr(Left[i], c) == NULL) return false;  //in the left side of the balance
> 				}
> 				break;
> 			case 'd': //the right side is heavy
> 				if (weight) { //light coin
> 					if (strchr(Left[i], c) == NULL) return false; //in the left side of the balance
> 				}
> 				else {		  //heavy coin
> 					if (strchr(Right[i], c) == NULL) return false; //in the right side of the balance
> 				}
> 				break;
> 	}
> 	return true;
> }
> 
> int main()
> {
> 	int n;
> 	cin >> n;
> 	while (n--) {
> 		for (int i = 0; i < 3; i++)
> 			cin >> Left[i] >> Right[i] >> Result[i];
> 		for (char c = 'A'; c <= 'L'; c++) {
> 			if (isCounterfeit(c, true)) {
> 				cout << c << " is the counterfeit coin and it is light." << endl;
> 				break;
> 			}
> 			if (isCounterfeit(c, false)) {
> 				cout << c << " is the counterfeit coin and it is heavy." << endl;
> 				break;
> 			}
> 		}
> 	}
> 
> 	return 0;
> }