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();
    }
}



import java.io.*;
import java.util.ArrayList;
import java.util.HashSet;
import java.util.Scanner;

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

/**
 *
 * @author joshuahm
 */
public class codejamC {
    public static void main(String[] args) throws FileNotFoundException, IOException {
        FileReader inFile = new FileReader("C-large.in");
        Scanner in = new Scanner(inFile);
        FileWriter outFile = new FileWriter("C-large.out");
        PrintWriter out = new PrintWriter(outFile);
        //Scanner in = new Scanner(System.in);
        
            ArrayList<String> temp2 = new ArrayList<String>();
            String temp;
            
            for(int i=1;i<10;i++)
                for(int j=0;j<10;j++)
                {
                    temp = "" + i + j; 
                    temp2.add(temp);
                }
            
            for(int i=1;i<10;i++)
                for(int j=0;j<10;j++)
                    for(int k=0;k<10;k++)
                    {
                        temp = "" + i + j + k ; 
                        temp2.add(temp);
                    }
            
            for(int i=1;i<10;i++)
                for(int j=0;j<10;j++)
                    for(int k=0;k<10;k++)
                        for(int l=0;l<10;l++)
                        {
                            temp = "" + i + j + k + l; 
                            temp2.add(temp);
                        }
            
            for(int i=1;i<10;i++)
                for(int j=0;j<10;j++)
                    for(int k=0;k<10;k++)
                        for(int l=0;l<10;l++)
                            for(int m=0;m<10;m++)
                            {
                                temp = "" + i + j + k + l + m; 
                                temp2.add(temp);
                            }
            
            for(int i=1;i<10;i++)
                for(int j=0;j<10;j++)
                    for(int k=0;k<10;k++)
                        for(int l=0;l<10;l++)
                            for(int m=0;m<10;m++)
                                for(int n=0;n<10;n++)
                                {
                                    temp = "" + i + j + k + l + m + n; 
                                    temp2.add(temp);
                                }
                for(int j=0;j<10;j++)
                    for(int k=0;k<10;k++)
                        for(int l=0;l<10;l++)
                            for(int m=0;m<10;m++)
                                for(int n=0;n<10;n++)
                                    for(int p=0;p<10;p++)
                                {
                                    temp = "" + '1' + j + k + l + m + n + p; 
                                    temp2.add(temp);
                                }
           
            String[] perms = new String[temp2.size()];
            temp2.toArray(perms);     
            int total=0;
            int x;
        
        int T= in.nextInt();
        for(int t=0;t<T;t++)
        {
            total=0;
            int A= in.nextInt();
            int B= in.nextInt();    
            HashSet<Integer> distinct = new HashSet<Integer>();
            for(int i=0;i<perms.length;i++)
            {
                if(Integer.parseInt(perms[i])>B)
                    break;
                distinct.clear();
                temp = perms[i];
                if(Integer.parseInt(perms[i])>=A && Integer.parseInt(perms[i])<=B)
                {
                    distinct.add(Integer.parseInt(perms[i]));
                    for(int j=0;j<perms[i].length()-1;j++)
                    {
                        temp=temp.substring(1)+ temp.charAt(0);
                        x = Integer.parseInt(temp);
                        if(x<=B && x>=A && temp.charAt(0) != '0')
                            distinct.add(x);
                    }   
                    total+= distinct.size()-1;
                    //if(distinct.size()>1)
                       // System.out.println(perms[i] + "   " + (distinct.size()-1));
                } 
            }            
            out.println("Case #"+ (t+1) +": " + total/2);
        }
        in.close();
        out.close();
    }
}
