// Arup Guha
// 2/21/2015
// Solution to 2015 Mercer Problem #3: Fizzy Buzzy Bears

import java.util.*;

public class prob3 {

	public static void main(String[] args) {

		Scanner stdin = new Scanner(System.in);

		int loop = 1;
		int low = stdin.nextInt();
		int high = stdin.nextInt();

		// Go through each case.
		while (low <= high) {

			// Header
			System.out.println("Case "+loop+":");

			// Go through each line.
			for (int i=low; i<=high; i++) {

				// Add in everything for this output to res.
				String res = "";
				if (i%3 == 0)  res += "Mercer";
				if (i%4 == 0)  res += "Bears";
				if (i%18 == 0) res += "Grrrr";
				if (i%33 == 0) res += "Bite";
				if (res.length() == 0) res += i;

				// Output the answer and move on.
				System.out.println(res);
			}

			// After each case.
			System.out.println();

			// Go to next case.
			low = stdin.nextInt();
			high = stdin.nextInt();
			loop++;
		}
	}
}