#include <bits/stdc++.h>
using namespace std;

int main(void)
{
	int N;
	cin >> N;

	if (N == 9)
		cout << "BAKA" << endl;
	else
		if (N == 10)
			cout << "Rumia" << endl;
		else
			cout << "Biu" << endl;


	return 0;
}

python 一句话题解：

print((['Biu']*9+['BAKA','Rumia'])[int(input())])