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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.BufferedReader;
import java.io.FileReader;
import java.io.IOException;
import java.util.ArrayList;
import java.util.HashMap;
import java.util.HashSet;
import java.util.Iterator;
import java.util.Set;


public class recycle {

	static int lim,start;
	static HashMap<String,HashSet<String>> set ;
	/**
	 * @param args
	 */
	public static void main(String[] args) throws IOException
	{
		// TODO Auto-generated method stub
		BufferedReader br = new BufferedReader(new FileReader("problem.in"));
		int t = Integer.parseInt(br.readLine());
		for (int i = 1; i <= t; i++)
		{
			set  = new HashMap<String,HashSet<String>>();
			String line = br.readLine();
			String val1 = line.split(" ")[0];
			String val2 = line.split(" ")[1];
			if (val1.length() == 1)
			{
				System.out.println("Case #" + i + ": 0");
				continue;
			}
			int v1 = Integer.parseInt(val1);
			int v2 = Integer.parseInt(val2);
			start = v1;
			lim = v2;
			int count = 0;
			for (int j = v1; j <= v2; j++)
			{
				recycle(j);
			}
			Set<String> key = set.keySet();
			Iterator k = key.iterator();
			int c = 0;
			while (k.hasNext())
			{
				String ne = (String)k.next();
				c+= set.get(ne).size();
			}
			System.out.println("Case #" + i + ": " + c);
			
			
		}
	}
	public static void recycle(Integer i)
	{
		String s = i.toString();
		boolean flag = false;
		for (int j = s.length() - 1; j > 0; j--)
		{
			String temp = "";
			temp += s.substring(j);
			temp += s.substring(0,j);
			if (temp.equals(s) == false && Integer.parseInt(temp) < lim && Integer.parseInt(temp) > start)
			{
				Integer lesser = Math.min(Integer.parseInt(s), Integer.parseInt(temp));
				Integer greatr = Math.max(Integer.parseInt(s), Integer.parseInt(temp));
				if (set.containsKey(lesser.toString()) == false)
				{
					HashSet<String> n = new HashSet<String>();
					n.add(greatr.toString());
					set.put(lesser.toString(), n);
				}
				else
				{
					HashSet<String> n = set.get((String)lesser.toString());
					n.add(greatr.toString());
					set.put(lesser.toString(),n);
				}
			}
			
		}
	}

}
