import java.util.HashSet;
import java.util.Scanner;

public class C {

	static HashSet p = new HashSet();
	static int low;
	static int high;
	int count = 0;

	public static void main(String[] args) {

		Scanner sc = new Scanner(System.in);
		int no = sc.nextInt();

		for (int i = 1; i <= no; i++) {

			p.clear();
			low = sc.nextInt();
			high = sc.nextInt();

			for (int l = low; l <= high; l++) {
				recycle(l);
			}
			System.out.println("Case #" + i + ": " + p.size());

		}
	}

	public static void recycle(int no) {

		String s = Integer.toString(no);
		for (int i = 0; i < s.length(); i++) {
			String rec = s.substring(i) + s.substring(0, i);
			int r = Integer.parseInt(rec);
			if (r != no && r >= low && r <= high) {
				int min = Math.min(r, no);
				int max = Math.max(r, no);
				String a = Integer.toString(min) + "" + Integer.toString(max);
				p.add(a);

			}
		}

	}
}

package recyclednumbers;
import java.io.BufferedReader;
import java.io.FileReader;
import java.io.IOException;
import java.io.InputStreamReader;


public class SimpleReader {

	private BufferedReader br;
	private int line = 0;
	
	public SimpleReader() {
		String filename = prompt();
		setReader(filename);
	}
	
	public SimpleReader(String filename) {
		setReader(filename);
	}
	
	private String prompt() {
		System.out.println("Input file: ");
		BufferedReader bufr = new BufferedReader(
									new InputStreamReader(System.in));
		String filename = null;
		try {
			filename = bufr.readLine();
		} catch (IOException e) {
			System.err.println("At prompt: " + e.getMessage());
		}
		return filename;
	}
	
	private void setReader(String filename) {
		try {
			br = new BufferedReader(new FileReader(filename));
		} catch (IOException e) {
			System.err.println(e.getMessage());
		}
	}
	
	public String readLine() {
		try {
			line++;
			return br.readLine();
		} catch (IOException e) {
			System.err.println("Line " + (line - 1) + ": " + e.getMessage());
			return null;
		}
	}
	
	public int readInt() {
		return Integer.parseInt(readLine());
	}
	
	public int[] readIntArray() {
		String[] tokens = readLine().split(" ");
		int[] ret = new int[tokens.length];
		for (int i = 0; i < tokens.length; i++) {
			ret[i] = Integer.parseInt(tokens[i]);
		}
		return ret;
	}
	
	public String[] readStringArray() {
		return readLine().split(" ");
	}
}
