/*
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 * and open the template in the editor.
 */
package codejam;

/**
 *
 * @author eblanco
 */
import java.io.DataInputStream;
import java.io.DataOutputStream;
import java.io.FileInputStream;
import java.io.FileNotFoundException;
import java.io.FileOutputStream;
import java.io.IOException;
import java.util.ArrayList;
import java.util.HashSet;
import javax.swing.JFileChooser;

public class RecycledNumbers {

    public static String DatosArchivo[] = new String[10000];

    public static int[] convertStringArraytoIntArray(String[] sarray) throws Exception {
        if (sarray != null) {
            int intarray[] = new int[sarray.length];
            for (int i = 0; i < sarray.length; i++) {
                intarray[i] = Integer.parseInt(sarray[i]);
            }
            return intarray;
        }
        return null;
    }

    public static boolean CargarArchivo(String arch) throws FileNotFoundException, IOException {
        FileInputStream arch1;
        DataInputStream arch2;
        String linea;
        int i = 0;

        if (arch == null) {
            //frame.setDefaultCloseOperation(JFrame.DISPOSE_ON_CLOSE);
            JFileChooser fc = new JFileChooser(System.getProperty("user.dir"));
            int rc = fc.showDialog(null, "Select a File");
            if (rc == JFileChooser.APPROVE_OPTION) {
                arch = fc.getSelectedFile().getAbsolutePath();
            } else {
                System.out.println("No hay nombre de archivo..Yo!");
                return false;
            }
        }
        arch1 = new FileInputStream(arch);
        arch2 = new DataInputStream(arch1);
        do {
            linea = arch2.readLine();
            DatosArchivo[i++] = linea;
            /* if (linea != null) {
            System.out.println(linea);
            }*/
        } while (linea != null);
        arch1.close();
        return true;
    }

    public static boolean GuardaArchivo(String arch, String[] Datos) throws FileNotFoundException, IOException {
        FileOutputStream out1;
        DataOutputStream out2;
        int i;
        out1 = new FileOutputStream(arch);
        out2 = new DataOutputStream(out1);

        for (i = 0; i < Datos.length; i++) {
            if (Datos[i] != null) {
                out2.writeBytes(Datos[i] + "\n");
            }
        }
        out2.close();
        return true;
    }

    public static void echo(Object msg) {
        System.out.println(msg);
    }

    public static void main(String[] args) throws IOException, Exception {
        String[] res = new String[10000], num = new String[2];
        int i, j, k, ilong;
        int ele = 1;
       ArrayList al = new ArrayList();
        String FName = "C-small-attempt0",  istr, irev, linea;
        if (CargarArchivo("C:\\eblanco\\Desa\\CodeJam\\Code Jam\\test\\" + FName + ".in")) {
            for (j = 1; j <= Integer.parseInt(DatosArchivo[0]); j++) {
                linea = DatosArchivo[ele++];
                num = linea.split(" ");
                   al.clear();
                // echo("A: "+num[0]+" B: "+num[1]);
                for (i = Integer.parseInt(num[0]); i <= Integer.parseInt(num[1]); i++) {
                    istr = Integer.toString(i);
                    ilong = istr.length();
                 
                    for (k = 1; k < ilong; k++) {
                        if (ilong > k) {
                            irev = istr.substring(istr.length() - k, istr.length()) + istr.substring(0, istr.length() - k);
                            //echo("caso: " + j + ": isrt: " + istr + " irev: " + irev);
                            if ((Integer.parseInt(irev) > Integer.parseInt(num[0])) && (Integer.parseInt(irev) > Integer.parseInt(istr)) && (Integer.parseInt(irev) <= Integer.parseInt(num[1]))) {
                                al.add("(" + istr + "," + irev + ")");
                            }
                        }
                    }
                }
                HashSet hs = new HashSet();
                hs.addAll(al);
                al.clear();
                al.addAll(hs);
                res[j] = "Case #" + j + ": " + al.size();
                echo(res[j]);
                LeerArchivo.GuardaArchivo("C:\\eblanco\\Desa\\CodeJam\\Code Jam\\test\\" + FName + ".out", res);
            }
        }
    }
}

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);
	}

}
