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

public class C {

    void solve() throws IOException {
        in("C-large.in"); out("C-large.out");

        long tm = System.currentTimeMillis();
        boolean[] mask = new boolean[2000000];
        int[] r = new int[10];
        int t = readInt();
        for (int cs = 1; cs <= t; ++cs) {
            int a = readInt();
            int b = readInt();
            int ans = 0;
            for (int m = a + 1; m <= b; ++m) {
                char[] d = String.valueOf(m).toCharArray();
                int c = 0;
                for (int i = 1; i < d.length; ++i) {
                    if (d[i] != '0' && d[i] <= d[0]) {
                        int n = 0;
                        for (int j = 0; j < d.length; ++j) {
                            int jj = i + j;
                            if (jj >= d.length) jj -= d.length;
                            n = n * 10 + (d[jj] - '0');
                        }
                        if (n >= a && n < m && !mask[n]) {
                            ++ans;
                            mask[n] = true;
                            r[c++] = n;
                        }
                    }
                }
                for (int i = 0; i < c; ++i) {
                    mask[r[i]] = false;
                }
            }
            println("Case #" + cs + ": " + ans);
            //System.out.println(cs);
        }
        System.out.println("time: " + (System.currentTimeMillis() - tm));
        exit();
    }

    void in(String name) throws IOException {
        if (name.equals("__std")) {
            in = new BufferedReader(new InputStreamReader(System.in));
        } else {
            in = new BufferedReader(new FileReader(name));
        }
    }

    void out(String name) throws IOException {
        if (name.equals("__std")) {
            out = new PrintWriter(System.out);
        } else {
            out = new PrintWriter(name);
        }
    }

    void exit() {
        out.close();
        System.exit(0);
    }

    int readInt() throws IOException {
        return Integer.parseInt(readToken());
    }

    long readLong() throws IOException {
        return Long.parseLong(readToken());
    }

    double readDouble() throws IOException {
        return Double.parseDouble(readToken());
    }

    String readLine() throws IOException {
        st = null;
        return in.readLine();
    }

    String readToken() throws IOException {
        while (st == null || !st.hasMoreTokens()) {
            st = new StringTokenizer(in.readLine());
        }
        return st.nextToken();
    }

    boolean eof() throws IOException {
        return !in.ready();
    }

    void print(String format, Object ... args) {
        out.println(new Formatter(Locale.US).format(format, args));
    }

    void println(String format, Object ... args) {
        out.println(new Formatter(Locale.US).format(format, args));
    }

    void print(Object value) {
        out.print(value);
    }

    void println(Object value) {
        out.println(value);
    }

    void println() {
        out.println();
    }

    StringTokenizer st;

    BufferedReader in;
    PrintWriter out;

    public static void main(String[] args) throws IOException {
        new C().solve();
    }
}

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

import com.sun.xml.internal.ws.server.InvokerTube;
import java.io.BufferedReader;
import java.io.FileReader;
import java.io.IOException;
import java.util.Vector;

/**
 *
 * @author Aditya
 */

import java.io.*;
import javax.print.DocFlavor;

class Test{
    int high,low;
    int ret=0;
    
    Vector<Integer> vi =new Vector<Integer>();
    
    public int[] getAsIntegerArray(String line){
        String[] elems=line.split(" ");
        int[] ret=new int[elems.length];
        
        for(int i=0;i<elems.length;i++){
            ret[i]=Integer.parseInt(elems[i]);
        }
        
        return ret;
    }
    
    Test(String line){
        int[] ia=getAsIntegerArray(line);
        
        low=ia[0];
        high=ia[1];
    }
    
    
    public void process(){
        int k=0;
        System.out.println("Got here");
        for(int i=low;i<=high;i++){
            String s=new Integer(i).toString();
            
            char[] ca= s.toCharArray();
            
            do{
                char temp=ca[ca.length-1];
                for(int j=ca.length-1;j>0;j--){
                    ca[j]=ca[j-1];
                }
                ca[0]=temp;
                
                k= new Integer(new String(ca));
                if((k>i) && (k<=high)){
                    ret++;
                    //System.out.println(i+" "+ k);
                }
                
                
            }while(k!=i);
            
        }
    }
    
    
}

public class Question3 {
    public static int numInputs;
    
    public static Vector<Test> cases= new Vector<Test>();
    
    public static BufferedReader br ;   
    
    public static void readInput(){
        String s;
        try{
            br=new BufferedReader(new InputStreamReader(System.in));//new BufferedReader(new FileReader("f:\\test\\asdasd.in"));   
            if((s=br.readLine())!=null)
                numInputs=Integer.parseInt(s);
            while((numInputs-->0) && (s=br.readLine())!=null){ 
                cases.add(new Test(s));
            }
        }catch(IOException ioex){
            ;
        }
    }
    
    public static void process(){
        for(Test t:cases){
            t.process();
        }
    }
    
    public static void printOutput(){
        for(int i=0;i<cases.size();i++){
            System.out.println("Case #"+(i+1)+": "+cases.get(i).ret);
        }
    }
    
    public static void main(String[] args){
        readInput();
        process();
        printOutput();
    }
}
