Luokittelija

#include <iostream>
using namespace std;

int main() {
	int k;
	cin >> k;

	if (k == 2) {
		cout << "21\n";

		cout << "0S -> S0\n";
		cout << "1S -> S1\n";

		cout << "C0 -> 0C\n";
		cout << "C1 -> 1C\n";
		cout << "0C -> D\n";
		cout << "1C -> E\n";

		cout << "S1 -> BSC\n";
		cout << "S0 -> ASC\n";

		cout << "0 -> S0\n";
		cout << "1 -> S0\n";

		cout << "FA -> AF\n";
		cout << "FB -> BF\n";
		cout << "GA -> AG\n";
		cout << "GB -> BG\n";

		cout << "AS -> SA\n";
		cout << "BS -> SB\n";
		cout << "SA -> F\n";
		cout << "SB -> G\n";

		cout << "FD -> _\n";
		cout << "GE -> _\n";
		cout << "S -> _\n";

		// SABABBBADEDDDE
	}
}

Test 1

Group: 1

Verdict: WRONG ANSWER

Test 2

Group: 2

Verdict: WRONG ANSWER

Test 3

Group: 3

Verdict: WRONG ANSWER

Test 4

Group: 4

Verdict: WRONG ANSWER