package codejam;

import java.util.*;
import java.io.*;

public class RecycledNumbers {
	public static void main(String[] args) throws IOException {
		BufferedReader in = new BufferedReader(new FileReader("in.txt"));
		PrintWriter out = new PrintWriter(new File("out.txt"));
		
		int T = Integer.parseInt(in.readLine());
		for (int t = 1; t <= T; ++t) {
			String[] parts = in.readLine().split("[ ]+");
			int A = Integer.parseInt(parts[0]);
			int B = Integer.parseInt(parts[1]);
			
			int cnt = 0;
			for (int i = A; i < B; ++i) {
				String str = String.valueOf(i);
				int n = str.length();
				String res = "";
				Set<Integer> seen = new HashSet<Integer>();
				for (int j = n - 1; j > 0; --j) {
					res = str.substring(j) + str.substring(0, j);
					int k = Integer.parseInt(res);
					if (k > i && k <= B) {
						//System.out.println("(" + i + ", " + k + ")");
						if (!seen.contains(k)) {
							++cnt;
							seen.add(k);
						}
					}
				}
			}

			out.println("Case #" + t + ": " + cnt);
		}
		
		in.close();
		out.close();
		System.exit(0);
	}
}

import java.io.BufferedReader;
import java.io.BufferedWriter;
import java.io.FileReader;
import java.io.FileWriter;
import java.util.ArrayList;


public class Run3 {
	public ArrayList<String> read(String name){
		ArrayList<String> data=new ArrayList<String>();

        try{
           BufferedReader br = new BufferedReader(new FileReader("C://codejam/"+name));

           String line = br.readLine();
          
           while(line != null){
                   data.add(line);
                   line = br.readLine();
           }

           br.close();

          
        }catch(Exception e){}
        return data;
	}
	
	public void write(ArrayList<String> data,String name){
		try{
	           BufferedWriter bw = new BufferedWriter(new FileWriter("C://codejam/"+name));
	           
	           for(int i = 0; i < data.size(); i++){
	               bw.write(data.get(i));
	               bw.newLine();
	           }

	           bw.close();
		}catch(Exception e){}

	}
	
	/**
	 * @param args
	 */
	public static void main(String[] args) {
		Run3 x= new Run3();
		ArrayList<String >data =new ArrayList<String>();
		ArrayList<String >out =new ArrayList<String>();
		data=x.read("input3.txt");
		for(int i=1;i<=Integer.parseInt(data.get(0));i++){
			String res=x.solve(data.get(i));
			System.out.println(res);
			out.add("Case #"+i+": "+res);
		}
		x.write(out, "output3.txt");
	}

	private String solve(String string) {
		String result="";
		int results=0;
		String[]x=string.split(" ");
		int a=Integer.parseInt(x[0]);
		int b=Integer.parseInt(x[1]);
		for(int i=a;i<b;i++){
			for(int j=i+1;j<=b;j++){
				String temp=""+i;
				for(int k=0;k<temp.length()-1;k++){
					temp+=temp.charAt(0);
					temp=temp.substring(1, temp.length());
					int num=Integer.parseInt(temp);
					if(num==j){
						if((""+num).length()==(""+j).length())
							results++;
					}
				}
				
				
				
			}
			
			
			
		}
		
		
		
		result+=results;
		return result;
	}

}
