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 recycle;

import java.io.BufferedReader;
import java.io.FileNotFoundException;
import java.io.FileReader;
import java.io.FileWriter;
import java.io.IOException;
import java.io.PrintWriter;

public class Recycle {

    public static int recyclepos(String a, String b)
    {
        int iter = 0;
        int c = Integer.parseInt(a);
//        System.out.println(c);
        int d = Integer.parseInt(b);
//        System.out.println(d);
        int e = a.length();
//        System.out.println(e);
        int x = c;
        int[] s = new int[d-c];
        int[] s1 = new int[a.length()];
        for(int i = 0; i < d-c; i++)
        {
            s[i]  = x;
            x++;
        }
        for(int i = 0; i < d - c + 1; i++)
        {
            int h = Integer.parseInt(a);
            if (i != 0 && s[i-1] != 0)
            {
            for(int j = e - 1; j > 0; j--)
            {
                String f = a.substring(e-j) + a.substring(0, e-j);
                //System.out.println(f);
                int g = Integer.parseInt(f);
                //System.out.println(g);
                s1[j] = g;
                for(int y = 0; y < s1.length; y++)
                {
                    if(y == j);
                    else if(s1[y] == g)
                    {
                        g = 0;
                        break;
                    }
                }
                if(g > c && g > h && g <= d)
                    iter = iter + 1;
                //System.out.println("interations: "+ iter);
                }
            }
            if(i < d-c){
            a = String.valueOf(s[i]);
            }
        }
            
            
        return iter;
           
    }
    
    
    public static void main(String[] args) throws FileNotFoundException, IOException {
        
     FileReader theFileID = new FileReader("C-large.in");
     BufferedReader inFile = new BufferedReader(theFileID);
     FileWriter fw = new FileWriter("output.txt");
     PrintWriter output = new PrintWriter(fw);
     String line;

     int numCases = 0;
     if((line = inFile.readLine()) != null)
         numCases = Integer.parseInt(line);

     String[] x = null;
     
  
     for(int i = 0; (line = inFile.readLine()) != null && i < numCases; i++) {
         
         x = line.split(" ");
         String a = x[0];
         String b = x[1];
         int y = recyclepos(a, b);
         
         
         output.write("Case #"+ (i + 1) + ": " + y);
            output.println();
         
            }

            
            
     
     inFile.close();
     output.close();
     fw.close();
        
        System.out.println(recyclepos("1", "9"));
        System.out.println(recyclepos("10", "40"));
        System.out.println(recyclepos("100", "500"));
        System.out.println(recyclepos("1111", "2222"));
        
        
    }
}
