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

/**
 *
 * @author Joel
 */
import java.io.*;
public class RecycledNumbers
{
    public static void main(String[] args)
    {
        try
        {
            FileWriter output = new FileWriter("C:\\Users\\Joel\\Documents\\CSCI 221\\Netbeans Projects\\Google CodeJam\\src\\C-large.out");
            BufferedWriter out = new BufferedWriter(output);
            FileReader reader = new FileReader("C:\\Users\\Joel\\Documents\\CSCI 221\\Netbeans Projects\\Google CodeJam\\src\\C-large.in");
            BufferedReader in = new BufferedReader(reader);
            int p = Integer.parseInt(in.readLine());
            StringBuilder test;
            int count = 0;
            for (int i = 0; i < p; i++)
            {
                String nums = in.readLine();
                int m = Integer.parseInt(nums.substring((nums.indexOf(" ")) + 1));
                int n = Integer.parseInt(nums.substring(0, nums.indexOf(" ")));
                for (int j = n; j < (m+1); j++)
                {
                    test = new StringBuilder(Integer.toString(j));
                    int k;
                    do
                    {
                        char move = test.charAt(test.length() - 1);
                        test.insert(0, move);
                        test.deleteCharAt(test.length() - 1);
                        k = Integer.parseInt(test.toString());
                        if (k > j && k < (m + 1) && k != j)
                            count++;
                    }
                    while(k != j);
                }
                out.write("Case #" + (i + 1) + ": " + count + "\n");
                count = 0;
            }
            out.close();
        }
        catch (IOException e)
        {
            
        }
    }
}
