Classifier

#include <bits/stdc++.h>
using namespace std;
int K, N;


int main(){
	cout << 20 << endl;
	cout << "00 -> A" << endl;
	cout << "01 -> B" << endl;
	cout << "10 -> C" << endl;
	cout << "11 -> D" << endl;
	for(int i=0;i<4;i++) for(int j=0;j<4;j++){
		if(i==j) continue;
		cout << char(i+'A') << char(j+'A') << " -> Z" << endl;
	}
	cout << "A -> _" << endl;
	cout << "B -> _" << endl;
	cout << "C -> _" << endl;
	cout << "D -> _" << endl;
}

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