/*
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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 ProbC {
    public static void main(String[] args) throws FileNotFoundException, IOException {
        ProbC p = new ProbC();
        p.solveAll();
    }
    int tests = 0;
    Scanner in;
    BufferedWriter out;
    public ProbC() throws FileNotFoundException, IOException {
        out = new BufferedWriter(new FileWriter("c.out"));
        in = new Scanner(new File("c.in"));
        tests = in.nextInt();
        in.nextLine();
        //System.out.println(tests);
    }

    public void solveAll() throws IOException {
        //System.out.println(move(11, 1));
        ///*
        for(int i = 0; i < tests; i++) {
            solve(i+1);
        }
        out.close();
        in.close();//*/
    }
    public void solve(int casenr) throws IOException {
        int A, B, res = 0;
        A = in.nextInt();
        B = in.nextInt();
        int[] perm = new int[100];
        for(int i = A; i <= B; i++) {
            int d = digits(i);
            for(int j = 1; j < d; j++) {
                int m = move(i, j);
                boolean found = false;
                for(int k = 1; k < j; k++) {
                    if(perm[k] == m)
                        found = true;
                }
                perm[j] = m;
                if(!found && valid(A, B, i, m))
                    res++;
            }
        }
        out.write("Case #"+casenr+": ");
        out.write(new Integer(res).toString());
        out.write('\n');
    }
    public int digits(int nr) {
        int d = 0;
        while(nr > 0) {
            nr /= 10;
            d++;
        }
        return d;
    }

    public int move(int nr, int pos) {
        String nrs = new Integer(nr).toString();
        String rs = nrs.substring(nrs.length()-pos);
        rs = rs + nrs.substring(0, nrs.length()-pos);
        return new Integer(rs).intValue();
    }

    public boolean valid(int A, int B, int n, int m) throws IOException {
        /*if(A <= n && n < m && m <= B)
            out.write(n+" "+m+" "+'\n');//*/
        return A <= n && n < m && m <= B;
    }
}