/*
 * To change this template, choose Tools | Templates
 * 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.BufferedWriter;
import java.io.File;
import java.io.FileWriter;
import java.io.IOException;
import java.util.Scanner;


public class Recycled_Numbers {

	/**
	 * @param args
	 */
	public static void main(String[] args) {
		try {

			Scanner sc = new Scanner(new File("C-small-attempt0.in"));
			int caseNo = sc.nextInt();
			FileWriter fstream = new FileWriter("C-small-attempt0.out");
			BufferedWriter out = new BufferedWriter(fstream);

			for(int i = 1; i <= caseNo; i++) {
				int a = sc.nextInt();
				int b = sc.nextInt();
				int recyclableNo = 0;
				int start;
				int end;

				if(a > b) {
					end = a;
					start = b;
				} else {
					end = b;
					start = a;
				}
				System.out.println("test");
				for(int j = start; j <= end; j++) {
					for(int k = end; k > j; k--) {
						if(isPermutation(j, k)) {
							if(isEquivalent(j, k)) {
								recyclableNo++;
							}
						}
					}
				}

				System.out.println("Case #" + i + ": " + recyclableNo);



				out.write("Case #" + i + ": " + recyclableNo);
				out.newLine();

			}

			//Close the output stream
			out.close();

		} catch (IOException e) {
			e.printStackTrace();
		}
	}

	private static int getNoOfDigits(long num) {
		int digitCount = 0;
		while(num > 0) {
			num /= 10;
			digitCount++;
		}
		return digitCount;
	}

	private static boolean isPermutation(int num1, int num2) {
		boolean result = false;
		int[] arr = new int[10];

		int temp = num2;
		while (temp > 0) {
			arr[temp % 10]++;
			temp /= 10;
		}

		temp = num1;
		while (temp > 0) {
			arr[temp % 10]--;
			temp /= 10;
		}


		for (int i = 0; i < 10; i++) {
			if (arr[i] != 0) {
				result = true;                
			}
		}

		return !result;
	}

	private static boolean isValidPermutation(int num1, int num2) {
		boolean result = false;
		int noOfMatches = 0;
		int currentPointToBegin = -1;
		int temp = num2 % 10;

		int[] arr1 = getDigitsInArray(num1);

		for(int i = 0; i < arr1.length; i++) {
			if(arr1[i] == temp) {
				noOfMatches++;
				if(currentPointToBegin == -1) {
					currentPointToBegin = i;
				}
			}
		}

		int temp2 = num2;

		while(temp2 > 0) {
			if(noOfMatches > 0) {
				noOfMatches--;
				for(int i = 0; i < arr1.length; i++) {
					
				}
			}
		}

		return result;
	}

	private static int[] getDigitsInArray(int num) {
		int i = getNoOfDigits(num);
		int[] arr = new int[i];
		while(num > 0) {
			arr[i - 1] = num % 10;
			num /= 10;
			i--;
		}
		return arr;
	}

	private static boolean isEquivalent(int num1, int num2) {
		boolean result = false;
		int rem;
		int digitNo = getNoOfDigits(num1);
		for(int i = 0; i < digitNo; i++) {
			if(num1 == num2) { 
				result = true;
				break;
			}
			rem = num1 % 10;
			num1 /= 10;
			num1 += rem * Math.pow(10, digitNo - 1);
		}
		return result;
	}
}
