/*
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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.util.*;
import java.io.*;
import java.text.*;
import java.math.*;

public class RecycledNumbers {
    public static BufferedReader BR;

    public static String readLine() {
        try {
            return BR.readLine();
        } catch(Exception E) {
            System.err.println(E.toString());
            return null;
        }
    }


    // ****** MAIN ******

    public static void main(String [] args) throws Exception {
        BR = new BufferedReader(new InputStreamReader(System.in));

        int testcases = Integer.parseInt(readLine());
        for (int t = 1; t <= testcases; t++) {
            RecycledNumbers instance = new RecycledNumbers();
            instance.solve(t);
        }

    }

    // ****** GLOBAL VARIABLES ******



    public RecycledNumbers() {
    }

    public boolean solve(int caseNumber) {
    	StringTokenizer st = new StringTokenizer(readLine());
    	int a = Integer.parseInt(st.nextToken());
    	int b = Integer.parseInt(st.nextToken());
    	int n = Integer.toString(a).length();
    	long result = 0;
    	for (int i = a; i <= b; ++i) {
    		String s = Integer.toString(i);
    		Set<Integer> seen = new HashSet<Integer>();
    		for (int j = 1; j < n; ++j) {
    			int rotated = Integer.parseInt(s.substring(j) + s.substring(0,j));
    			if (i < rotated && rotated <= b && !seen.contains(rotated)) {
    				seen.add(rotated);
    				++result;
    			}
    		}
    	}
      System.out.println("Case #" + caseNumber + ": " + result);
			return false;
    }


}
