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

public class RecycledNumbers
{
    public RecycledNumbers()
    {
        Scanner inFile = null;
        try
        {
            inFile = new Scanner(new File("input.txt"));
        }
        catch(Exception e)
        {
            System.out.println("Problem opening input file. Exiting...");
			System.exit(0);
        }
        int t = inFile.nextInt();
        
        int [] results = new int [t];
        RecycledNumbersCounter [] rnc = new RecycledNumbersCounter[t];
        
        int i;
        for(i = 0; i < t; i++)
        {
            rnc[i] = new RecycledNumbersCounter(i, inFile.nextInt(), inFile.nextInt(), results);
            rnc[i].start();
        }
        inFile.close();
        
        boolean done = false;
        
        while(!done)
        {
            done = true;
            for(i = 0; i < t; i++)
                if(rnc[i].isAlive())
                {
                    done = false;
                    break;
                }
        }
        
        PrintWriter outFile = null;
        try
        {
            outFile = new PrintWriter(new File("output.txt"));
        }
        catch(Exception e)
        {
            System.out.println("Problem opening output file. Exiting...");
			System.exit(0);
        }
        
        for(i = 0; i < results.length; i++)
            outFile.printf("Case #%d: %d\n", i+1, results[i]);
        outFile.close();
    }
    
    public static void main(String [] args)
    {
        new RecycledNumbers();
    }
    
    public static String intToString(int i)
    {
        String res = "";
        while(i > 0)
        {
            res =(i%10)+res;
            i /= 10;
        }
        
        return res;
    }
    
    private class RecycledNumbersCounter extends Thread
    {
        int id;
        int a, b;
        int [] results;
        
        public RecycledNumbersCounter(int i, int first, int second, int [] res)
        {
            id = i;
            a = first;
            b = second;
            results = res;
        }
        
        public void run()
        {
            int count = 0;
            for(int i = a; i < b; i++)
            {
                for(int j = i+1; j <= b; j++)
                    if(recycled(i, j))
                    {
                        count++;
                    }
            }
            results[id] = count;
        }
        
        public boolean recycled(int a, int b)
        {
            String c = intToString(a);
            String d = intToString(b);
            boolean found = false;
            
            if(c.length() != d.length())
                return false;
            
            int d_index = d.indexOf(c.charAt(0));
            
            while(d_index >= 0)
            {
                found = true;
                for(int i = 1; i < c.length(); i++)
                {
                    if(c.charAt(i) != d.charAt((d_index + i)%d.length()))
                    {
                        found = false;
                        break;
                    }
                }
                if(found)
                    return true;
                d_index = d.indexOf(c.charAt(0), d_index+1);
            }
            
            return false;
        }
    }
}