/*
 * To change this template, choose Tools | Templates
 * and open the template in the editor.
 */

package recycled;

import java.io.BufferedReader;
import java.io.DataInputStream;
import java.io.FileInputStream;
import java.io.FileWriter;
import java.io.InputStreamReader;
import java.io.PrintWriter;
import java.util.TreeSet;

/**
 *
 * @author Alfred
 */
public class Main {

    /**
     * @param args the command line arguments
     */
    public static void main(String[] args) {
    try {
            FileInputStream fstream = new FileInputStream("C-small-attempt0.in");
            DataInputStream in = new DataInputStream(fstream);
            BufferedReader br = new BufferedReader(new InputStreamReader(in));
            FileWriter outFile = new FileWriter("out.txt");
            PrintWriter out = new PrintWriter(outFile);
            String line;
            line = br.readLine();
            int cases = Integer.parseInt(line);
            for (int i=1; i<=cases;i++){
                line = br.readLine();
                String[] values = line.split(" ");
                int A = Integer.parseInt(values[0]);
                int B = Integer.parseInt(values[1]);
                int total=0;
                for (int n=A; n<=B;n++){
                    TreeSet<String> solutions = new TreeSet<String>();
                    for (int k=1;k<values[1].length();k++){
                        String m = circshift(n,k);
                        int mVal = Integer.parseInt(m);
                        if(mVal<=B && mVal!=n  && mVal> n && !m.startsWith("0") && m.length()==Integer.toString(n).length() )
                        {
                            solutions.add(m);
                        }                   
                    }
                    total+=solutions.size();
                }
                out.println("Case #"+i+": "+total);
            }
            in.close();
            out.close();
        } catch (Exception e) {//Catch exception if any
            System.err.println("Error: " + e.getMessage());
        }

}

    private static String circshift(int n, int k) {
        String nString=Integer.toString(n);
        int len=nString.length();
        String m =  nString.substring(len-k)+nString.subSequence(0, len-k);
        //System.out.println(n+" "+m);
        return m;
    }

}

import java.util.Scanner;


public class Main {

	/**
	 * @param args
	 */
	public static void main(String[] args) {
		Scanner scanner = new Scanner(System.in);
		int numTestCases = Integer.valueOf(scanner.nextLine());
		for ( int i =0; i < numTestCases; i++ ) {
			String theCase = scanner.nextLine();
			//Error checking not necessary for now.

			Scanner lineScanner = new Scanner(theCase);
			int A = lineScanner.nextInt();
			int B = lineScanner.nextInt();
			int numDigits = getNumDigits(A,B);
			int[] powersOf10 = new int[numDigits];
			powersOf10[0] =1;
			for ( int j =1; j < numDigits; j++) {
				powersOf10[j] = powersOf10[j-1]*10;
			}
			//Brute force
			int count=0;
			for ( int number = A; number <=B; number ++ ) {
				int[] acceptedPairs = new int[numDigits]; // Defaults to 0
				for ( int firstDigit = 1; firstDigit < numDigits; firstDigit++ ) {
					//Make a new number.
					int newNum = (number%powersOf10[firstDigit])*powersOf10[numDigits-firstDigit] + number/powersOf10[firstDigit];
					if ( newNum > B || newNum <= number) {
						continue;
					}
					for ( int j=0; j < acceptedPairs.length; j++) {
						if ( acceptedPairs[j] == newNum ) {
							//Duplicate number
							break;
						} else if ( acceptedPairs[j] == 0 ) {
							//New number
							acceptedPairs[j] = newNum;
							break;
						}
					}
				}
				// Count non-zero accepted pairs
				for ( int j = 0; j < acceptedPairs.length; j++ ) {
					if ( acceptedPairs[j] == 0 ) {
						break;
					}
					count++;
				}
			}
			StringBuilder builder = new StringBuilder("Case #");
			builder.append(i+1).append(": ");
			builder.append(count);
			System.out.println(builder.toString());
		}
	}

	private static int getNumDigits(int a, int b) {
		int count = 0;
		while ( a > 0) {
			count++;
			a /= 10;
		}
		return count;
	}

}
