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 com.niall.codejam;

import java.io.BufferedReader;
import java.io.BufferedWriter;
import java.io.File;
import java.io.FileNotFoundException;
import java.io.FileReader;
import java.io.FileWriter;
import java.io.IOException;
import java.util.HashSet;

public class ProbC {
	
	String english, goglish;
	
	public ProbC(){
	}
	
	public int solve(int a, int b){
		int count = 0;
		HashSet<Integer> set;
		for(int n = a; n<= b; n++){
			String x = n + "";
			set = new HashSet<Integer>();
			for(int j = 0; j < x.length() - 1; j++){
				x = push(x);
				int m = Integer.parseInt(x);
				if(n < m && m <=b ){
					set.add(m);
				}
			}
			count += set.size();
		}
		return count;
		
	}

	public String push(String x){
		return x.substring(1) + x.charAt(0);
	}

	/**
	 * @param args
	 */
	public static void main(String[] args) {
		String infile = "probCin";
		String outfile = "probCans";
		try {
			BufferedReader br = new BufferedReader(new FileReader(new File(infile)));
			BufferedWriter bw = new BufferedWriter(new FileWriter(new File(outfile)));
			ProbC p1 = new ProbC();
			
			br.readLine();
			int i = 1;
			String s;
			while((s=br.readLine())!= null){
				String[] ss = s.split(" ");
				int a = Integer.parseInt(ss[0]);
				int b = Integer.parseInt(ss[1]);
				bw.write("Case #" + i + ": " + p1.solve(a,b));
				bw.newLine();
				i++;
			}
			bw.close();
			br.close();
		} catch (FileNotFoundException e) {
			// TODO Auto-generated catch block
			e.printStackTrace();
		} catch (IOException e) {
			// TODO Auto-generated catch block
			e.printStackTrace();
		}
	}

}
