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

public class C{
	static ArrayList< ArrayList<Integer> > mem = new ArrayList< ArrayList<Integer> >();
	static int lenAB = -1;
	static boolean udah[] = new boolean[2000005];
		
	public static void compute(int x){
		int div = 10, gen, mul = 1;
		for (int i = 0 ; i < lenAB-1 ; i ++)mul*=10;
		HashSet<Integer> set = new HashSet<Integer>();
		while(mul > 1){
			gen = x/div + (x%div)*mul;
			if (x%div!=0 && x!=gen && !set.contains(gen)){
				mem.get(x).add(gen);
				set.add(gen);
			}
			div*=10;
			mul/=10;
		}
		udah[x] = true;
	}
	
	public static void main(String args[])throws Exception{
		for (int i = 0 ; i < 2000005 ; i ++){
			mem.add	(new ArrayList<Integer>());
			udah[i] = false;
		}
		
		BufferedReader in = new BufferedReader(new InputStreamReader(System.in));
		StringTokenizer tok;
		String input;
		int t, a, b, sum = 0;
		
		t = Integer.parseInt(in.readLine());
		for (int k = 1 ; k <= t ; k ++){
			tok = new StringTokenizer(in.readLine());
			input = tok.nextToken();
			lenAB = input.length();
			a = Integer.parseInt(input);
			b = Integer.parseInt(tok.nextToken());
			sum = 0;
			for (int i = a ; i < b ; i ++){
				if (!udah[i]){
					compute(i);
				}
				int len = mem.get(i).size(), res;
				for (int j = 0 ; j < len ; j ++ ){
					res = mem.get(i).get(j);
					if (i < res && res <= b){
						sum++;
					}
				}
			}
			System.out.println("Case #" + k + ": " + sum);
		}
	}
}