package Main;

import com.sun.deploy.util.ArrayUtil;
import org.apache.commons.lang3.ArrayUtils;

import java.io.*;
import java.util.ArrayList;
import java.util.Arrays;
import java.util.HashMap;
import java.util.HashSet;

/**
 * Created with IntelliJ IDEA.
 * User: arran
 * Date: 14/04/12
 * Time: 3:12 PM
 * To change this template use File | Settings | File Templates.
 */
public class Round {
    public StringBuilder parse(BufferedReader in) throws IOException {
        StringBuilder out = new StringBuilder();
        String lineCount = in.readLine();

        for (int i = 1; i <= Integer.parseInt(lineCount); i++)
        {
            out.append("Case #"+i+": ");
            System.err.println("Case #"+i+": ");
            String line = in.readLine();
            String[] splits = line.split(" ");
            int p1 = Integer.valueOf(splits[0]);
            int p2 = Integer.valueOf(splits[1]);
            int r = pairRecyclable(p1, p2);
            out.append(r);

//            if (i < Integer.parseInt(lineCount))
                out.append("\n");
        }
        return out;
    }

    public static int pairRecyclable(int i1, int i2) {
        HashSet<String> hash = new HashSet<String>();
        for (int i = i1; i < i2; i++)
        {
            String istr = String.valueOf(i);
            if (istr.length() < 2) continue;
            for (int p = 0; p < istr.length() ; p++)
            {
                String nistr = istr.substring(p,istr.length()).concat(istr.substring(0,p));
                if (Integer.valueOf(nistr) < i1) continue;
                if (Integer.valueOf(nistr) > i2) continue;
                if (nistr.equals(istr)) continue;
                String cnistr = (Integer.valueOf(nistr) > Integer.valueOf(istr)) ?  istr + "," + nistr : nistr + "," + istr;
                hash.add(cnistr);
            }
        }
        return hash.size();
    }

    public static void main(String[] args) {
        InputStreamReader converter = null;
        try {
            int attempt = 0;
            String quest = "C";
//            String size = "small-attempt";
            String size = "large";
            converter = new InputStreamReader(new FileInputStream("src/resource/"+quest+"-"+size+".in"));
            BufferedReader in = new BufferedReader(converter);
            Round r = new Round();
            String str = r.parse(in).toString();
            System.out.print(str);
            FileOutputStream fos = new FileOutputStream(quest+"-"+size+".out");
            OutputStreamWriter osw = new OutputStreamWriter(fos);
            BufferedWriter bw = new BufferedWriter(osw);
            bw.write(str);
            bw.flush();
            bw.close();
        } catch (IOException e) {
            e.printStackTrace();
        }

    }
}

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

public class C {
    BufferedReader ins;
    PrintStream outs;

    static String INPUT = "C-large.in";
    static String OUTPUT;

    static {
        OUTPUT = "C-large.out";
    }

    Map<String, Set<String>> map = new HashMap<String, Set<String>>();
    
    public C(BufferedReader ins, PrintStream outs) {
        this.ins = ins;
        this.outs = outs;
    }

    public void preprocess() {
        for(int j = 1; j<=2000000; j++) {
            String k = new Integer(j).toString();
            Set<String> set = new HashSet<String>();
            int sz = k.length();
            for(int i = 1; i<sz; i++) {
                set.add(k.substring(i) + k.substring(0,i));
            }
            map.put(k, set);
        }
    }
    
    public int permuteK(int k, int b) {
        int sz = new Integer(b).toString().length();
        int ret = 0;

        Set<String> set = new HashSet<String>();
        for(int i = 0; i<sz; i++) {
            String x = new Integer(k).toString();
            String sb = x.substring(i) + x.substring(0,i);
            
            assert(sb.length() == sz);
            
            int newk = Integer.parseInt(sb);
            if(newk > k && newk <=b) {
                if(!set.contains(x+"-"+sb)) {
                    set.add(x+"-"+sb);
                }
                ret++;
            }
        }
        return set.size();
    }
   
    public int permuteL(int k, int b) {
        String m = new Integer(k).toString();
        int count = 0;
        for(String r : map.get(m)) {
            int newk = Integer.parseInt(r);
            if(newk>k && newk<=b) count++;
        }
        return count;
    }
    public int go(int a, int b) {
        int count = 0;
        for(int k = a; k < b; k++) {
            count += permuteK(k, b);
        }
        return count;
    }

    public void process() throws Exception {
//        preprocess();
 //       System.out.println("Hi");
       //Read input
       int t = Integer.parseInt(ins.readLine());

       for(int T=1; T<=t;T++) {
            String x = ins.readLine().trim().replaceAll(" +", " ");
            String[] tokens = x.split(" ");
            int a = Integer.parseInt(tokens[0]);
            int b = Integer.parseInt(tokens[1]);
            
            outs.println("Case #" + T + ": " + go(a,b));
        }
    }

    public static void main(String args[]) throws Exception {
        //Input
        InputStreamReader fis = new FileReader(INPUT);
        BufferedReader bis = new BufferedReader(fis);

        //Output
        PrintStream ps = OUTPUT!=null ? new PrintStream(OUTPUT) : System.out;
        
        C c = new C(bis, ps);

        c.process();
        return;
    }
}
