/*
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 * and open the template in the editor.
 */
package gcj;

import java.io.File;
import java.io.FileWriter;
import java.util.ArrayList;
import java.util.Scanner;

/**
 *
 * @author daniele
 */
public class GCJ_C {
    
    public static void main(String[] args) throws Exception{
        
        
        
        Scanner in = new Scanner(new File(args[0]));
        FileWriter out = new FileWriter("/home/daniele/Scrivania/Output");
        

        int prove=in.nextInt();
        int min,max;
        int cifre;
        int cifreaus;
        String temp;
        int aus;
        int count=0;
        ArrayList<Integer> vals = new ArrayList<Integer>();
        int jcount=0;
        ArrayList<Integer> perm = new ArrayList<Integer>();
        
        out.write("");
        out.flush();
        
        for(int i=1;i<=prove;i++){
            
            out.append("Case #" +i+": ");out.flush();
            
            min=in.nextInt();
            max=in.nextInt();
            
            for(int j=min;j<=max;j++){
               if(!vals.contains(j)){
                    temp=""+j;
                    cifre=temp.length();
                    aus=j;
                    perm.add(j);
                    for(int k=1;k<cifre;k++){
                        aus=rotateOnce(aus);
                        temp=""+aus;
                        cifreaus=temp.length();//elusione zeri iniziali
                        if(aus>=min && aus<=max && aus!=j && cifreaus==cifre && nobody(vals,perm)){ 
                            perm.add(aus);
                            jcount ++;
                            
                        }
                        
                    }
                    while(jcount>0){count+=jcount; jcount--;}
                    vals.addAll(perm);
                    perm= new ArrayList<Integer>();
                    
                }
            }
            out.append(count+"\n");out.flush();
            count=0;
            vals= new ArrayList<Integer>();
        }
        
        
        
    }
        static public int rotateOnce(int n){
            String s=""+n;
            if(s.length()>1){
                s=s.charAt(s.length()-1) + s.substring(0,s.length()-1);
                n=Integer.parseInt(s);
            }
            return n;
        }    
        
        static public boolean nobody(ArrayList<Integer> v,ArrayList<Integer> a){;
            for(int i=0;i<a.size();i++)
                if(v.contains(a.get(i))) return false;
            return true;
        } 
    
}


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

public class RecycledNumbers
{
	public static void main(String[] args)throws Exception
	{
		File f = new File("recyclednumbers.txt");
		File outp = new File("recyclednumbers.out");
		Scanner sc = new Scanner(new FileReader(f));
		Writer wr = new BufferedWriter(new FileWriter(outp));
		int t = sc.nextInt();
		for(int casse=1; casse<=t; casse++)
		{
			String as = sc.next(), bs = sc.next();
			int a = Integer.parseInt(as), b = Integer.parseInt(bs);
			boolean[][] check = new boolean[b-a+1][b-a+1];
			int digits = (int) (Math.ceil(Math.log10(b)));
			for(int i=a; i<=b; i++)
			{
				String temp1 = new Integer(i).toString();
				//StringBuffer temp1 = new StringBuffer(s);
				int start=0;
				for(int j=1; j<=digits; j++)
				{
					StringBuffer temp2 = new StringBuffer(temp1.length());
					int count = 1;
					for(int k=start; count<=digits; count++, k=(k+1)%digits)
						temp2.append(temp1.charAt(k));
					start++;
					if(temp2.charAt(0)=='0')
						continue;
					int n1 = Integer.parseInt(temp1.toString());
					int n2 = Integer.parseInt(temp2.toString());
					if(a<=n2 && n2<=b)
						check[n1-a][n2-a] = check[n2-a][n1-a] = true;
				}
			}
			int count = 0;
			for(int i=0; i<check.length; i++)
				for(int j=i+1; j<check[i].length; j++)
					if(check[i][j])
						count++;
			wr.write("Case #"+casse+": "+count+"\n");
		}
		sc.close();
		wr.close();
		return;
	}
}