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

public class recycled_numbers {
	public static void main(String[]a) throws Exception{
		
		Scanner f = new Scanner(new File(a[0]));
		int result=0;
		int A,B;
		String n,m;
		HashSet<String> s=new HashSet<String>();
		
		int T=f.nextInt();	//T total case count
		for (int t=1; t<=T;t++){//for each case t
			
			s.clear();
			result=0;				//reset
			A=f.nextInt();B=f.nextInt();	//get values for next case
			
			if (A==B)result=0;//remove case not meeting problem limits 
			else{
				for(int i=A;i<=B;i++){//for each int in range
					n=Integer.toString(i);
					m=new String(n);
					//System.out.println(n);
					for (int j=1;j<n.length();j++){//move each digit to the front & test
						m = m.substring(m.length()-1)+m.substring(0,m.length()-1);
						if(m.matches("^0+[\\d]+")!=true &&
								Integer.parseInt(m)<=B &&
								Integer.parseInt(n)<Integer.parseInt(m)){
							s.add(new String(n+","+m));
							//result++;
							//System.out.println(" matched: "+m);
						}
						
					}
				}
				result = s.size();
			}

			//display output
			System.out.println("Case #" + t + ": " + result);
		}
	}
}
import java.util.HashSet;
import java.util.Scanner;
import java.util.Set;
import java.util.TreeSet;

/**
 * Created by IntelliJ IDEA.
 * User: elbek
 * Date: 4/13/12
 * Time: 7:31 PM
 * To change this template use File | Settings | File Templates.
 */
public class Test {

    public static void main(String[] args) {
        int count = 0;
        Set<String> found = new TreeSet<String>();
        int t = 50;

        Scanner scanner = new Scanner(System.in);


        for (int q = 0; q <= t; q++) {
            count = 0;
            String str = scanner.nextLine();

            String []arg = str.split(" ");
            Integer a = Integer.parseInt(arg[0]);
            Integer b = Integer.parseInt(arg[1]);
            for (int i = a; i <= b; i++) {
                String input = String.valueOf(i);

                String changed;
                int len = input.length();

                for (int j = 1; j < len; j++) {

                    changed = input.substring(j, len) + input.substring(0, j);
                    if (Integer.valueOf(changed) <= Integer.valueOf(input)) continue;

                    if (Integer.valueOf(changed) <= b && Integer.valueOf(changed) >= a) {
                        //found.add(input + " - " + changed);
//                    found.add(changed);
                        count++;
                    }
                }
            }
            System.out.println("Case #"+(q+1)+": "+count);
        }
    }
}
