#include <iostream>
#include <string>
#include <algorithm>
#include <vector>
#include <iomanip>
#include <cmath>
#include <stdio.h>
#include <queue>
#include <deque>
#include <cstdio>
#include <set>
#include <map>
#include <bitset>
#include <stack>
#include <cctype>
using namespace std;
int main() {
	long double a;
	cin >> a;
	for (long double i = 1;; i++) {
		if (a * i == floor(a * i)) {
			char ans;
			int ans1 = (a + 1) * i * 2 - 2 - (int((a + 1) * i) % 2) - i;
			if (int(abs(((a - 1) * i))) % 2 == 0) {
				ans = 'A';
			}
			else if (int(a * i) % 2 == 0) {
				ans = 'B';
			}
			else {
				ans = 'C';
			}
			cout << ans << " " << ans1 << endl;
			return 0;
		}
	}
}