import java.io.FileInputStream;
import java.util.HashMap;
import java.util.Scanner;
import java.util.TreeSet;

// Recycled Numbers
// https://code.google.com/codejam/contest/1460488/dashboard#s=p2

public class C {

	private static String process(Scanner in) {
		int A = in.nextInt();
		int B = in.nextInt();
		int res = 0;
		int len = Integer.toString(A).length();
		for(int n = A; n < B; n++) {
			String str = Integer.toString(n);
			TreeSet<Integer> set = new TreeSet<Integer>();
			for(int i = 1; i < len; i++) {
				int m = Integer.parseInt(str.substring(i, len) + str.substring(0, i));
				if ( m > n && m <= B && ! set.contains(m) ) {
					set.add(m);
					res++;
				}
			}
		}
		return Integer.toString(res);
	}

	public static void main(String[] args) throws Exception {
		Scanner in = new Scanner(System.in.available() > 0 ? System.in : 
			new FileInputStream(Thread.currentThread().getStackTrace()[1].getClassName() + ".practice.in"));
		int T = in.nextInt();
		for(int i = 1; i <= T; i++) 
			System.out.format("Case #%d: %s\n", i, process(in));
	}
}

/*
 * To change this template, choose Tools | Templates
 * and open the template in the editor.
 */
package googl2;

/**
 *
 * @author Mimo
 */
import java.io.*;
import java.util.Scanner;
public class Googl2 {

    /**
     * @param args the command line arguments
     */
    public static void main(String[] args) throws FileNotFoundException, IOException {
        // TODO code application logic here
        int t;
        int result;
        String input1;
        String input2;
        String input4;
        int a,b;
       File input=new File("C:\\Users\\Mimo\\Desktop\\C-small-attempt0.in");
            FileWriter output=new FileWriter("output.txt");
        BufferedWriter out = new BufferedWriter(output);
        Scanner getter =  new Scanner(input);
            t=getter.nextInt();
            getter.nextLine();
            for(int i=1;i<=t;i++)
            {
                result=0;
               input1=getter.next();
               input2=getter.next();
               a=Integer.valueOf(input1);
               b=Integer.valueOf(input2);
               for(int j=a;j<b;j++)
               {
                   input4=String.valueOf(j);
                  for(int jj=0;jj<input4.length()-1;jj++)
                  {
                     input4=input4.substring(input4.length()-jj-1)+input4.substring(0, input4.length()-jj-1);
                      if(Integer.valueOf(input4)<=b  && Integer.valueOf(input4)>j && input4.charAt(0)!='0')
                         result++;
                      System.out.println(input4+" "+" "+b+" "+result+" "+j);
                      input4=String.valueOf(j);
                  }
               }
               
                out.write("Case #"+i+": "+result);
       out.newLine();
            }
            out.close();
        
    }
}
