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


public class C {
	
	private class OutputDelegate {

		BufferedWriter out;
		
		private OutputDelegate(String fileName) {
			try {
				out = new BufferedWriter(new FileWriter(fileName));
			} catch (IOException e) {
				// TODO Auto-generated catch block
				e.printStackTrace();
			}
		}
		
		private void write(String output) {
			try {
				out.write(output);
			} catch (IOException e) {
				// TODO Auto-generated catch block
				e.printStackTrace();
			}
		}
		
		private void writeLine(String output) {
			try {
				write(output);
				out.newLine();
			} catch (IOException e) {
				// TODO Auto-generated catch block
				e.printStackTrace();
			}
			
		}
		
		private void close() {
			try {
		        if (out != null)
		        {
		            out.close();
		        }
	        } catch (IOException e) {
				// TODO Auto-generated catch block
				e.printStackTrace();
			}
		}
	}

	private class InputDelegate {

		BufferedReader in;
		
		private InputDelegate(String fileName){
			try {
				in = new BufferedReader(new FileReader(fileName));
			} catch (FileNotFoundException e) {
				// TODO Auto-generated catch block
				e.printStackTrace();
			}
		}
		
		private int[] readIntLine() {
			String line;
			String income[] = null;
			try {
				if ((line = in.readLine()) != null) {
					income = line.split(" ");
				}
			} catch (IOException e) {
				// TODO Auto-generated catch block
				e.printStackTrace();
			}
			int array[] = new int[income.length];
			for (int i = 0; i < array.length; i++) {
				array[i] = (Integer.parseInt(income[i]));
			}
			return array;
		}

		private void close() {
			try {
				in.close();
			} catch (IOException e) {
				// TODO Auto-generated catch block
				e.printStackTrace();
			}
		}
		
	}
	
	public void process(String[] args) {
		InputDelegate in = new InputDelegate(args[0]);
		OutputDelegate out = new OutputDelegate(args[1]);
		int cases = in.readIntLine()[0];
		for (int i = 1; i <= cases; i++) {
			int count = 0;
			int[] line = in.readIntLine();
			for(int num = line[0]; num <= line[1]; num++) {
				int[] possibs = getPossib(num);
				for (int j = 1; j < possibs.length; j++) {
					if(possibs[j] == -1)
						continue;
					if(possibs[j] > num && possibs[j] <= line[1]) {
						count++;
					}
				}
			}
			out.writeLine("Case #" + i + ": " + count);
		}
		in.close();
		out.close();
	}
	
	public int[] getPossib(int num) {	/*returns possibilities*/
		int digit = Integer.toString(num).length();
		int[] possib = new int[digit];
		possib[0] = num;
		for (int i = 1; i < possib.length; i++) {
			int next = possib[i-1];
			int lastd = next%10;
			next = next/10+lastd*exponent(possib.length-1);
			if(!hasSame(next, possib))
				possib[i] = next;
			else possib[i] = -1;
		}
		return possib;
	}
	
	public boolean hasSame(int number, int[] possib) {
		for (int i = 0; i < possib.length; i++) {
			if(number == possib[i])
				return true;
		}
		return false;
	}
	
	private int exponent(int exp) {
		int a = 1;
		for (int i = 0; i < exp; i++) {
			a = a*10;
		}
		return a;
	}
	
	public static void main(String[] args) {
		C m = new C();
		m.process(args);
	}

}
