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

import java.util.HashSet;

/**
 *
 * @author vandit
 */
public class RecycleNumbers {

    private HashSet<String> numbers = new HashSet<String>();
    private HashSet<String> initialTempNumbers = new HashSet<String>();
    private HashSet<String> finalTempNumbers = new HashSet<String>();

    HashSet<Pair> numberPairs = new HashSet<Pair>();


    private void findRecycledNumbers(int start, int end, int places) {


        for (int i = start; i <= end; i++) {
            String initialNumber = Integer.toString(i);
            //if (!(numbers.contains(initialNumber) || finalTempNumbers.contains(initialNumber))) {

                StringBuffer tempNumber = new StringBuffer(initialNumber);
                int len = tempNumber.length();
                int startIndexToMove = len - places;
                String tempString = tempNumber.substring(startIndexToMove);
                if ((places == 1 && tempString.equals("0")) || tempString.charAt(0) == '0') {
                    continue;
                }
                tempNumber.delete(startIndexToMove, len);
                String finalTempNumber = tempString + tempNumber.toString();

                if (! (finalTempNumber.equals(initialNumber) || Integer.parseInt(finalTempNumber) > end || Integer.parseInt(finalTempNumber) < Integer.parseInt(initialNumber))) {
                    numbers.add(initialNumber);
                    finalTempNumbers.add(finalTempNumber);
                    Pair pair = new Pair(finalTempNumber,initialNumber);
                    numberPairs.add(pair);
                }
            }

        

    }

    public HashSet<Pair> findAllRecycledNumbers(int start, int end) {
        int length = Integer.toString(start).length();
        for (int i = 1; i < length; i++) {
            findRecycledNumbers(start, end, i);
        }
        return numberPairs;
    }
}

import java.io.File;
import java.io.PrintStream;
import java.util.HashSet;
import java.util.Scanner;

public class C {

	public static void main(String[] args) throws Exception {
		Scanner in = new Scanner(new File("input"));
		 System.setOut(new PrintStream("output"));

		int T = in.nextInt();
		for (int t = 1; t <= T; t++) {
			System.out.print("Case #" + t + ": ");
			int a = in.nextInt(), b = in.nextInt();
			int count = 0;
			for (int i = a; i <= b; i++) {
				HashSet<Integer> set = new HashSet<Integer>();
				char[] x = String.valueOf(i).toCharArray();
				int n = x.length;
				char[] y = new char[n];
				for (int j = 0; j < n; j++)
					if (x[j] != '0') {
						for (int k = 0; k < n; k++)
							y[k] = x[(j + k) % n];
						int k = Integer.parseInt(String.valueOf(y));
						if (set.contains(k))
							continue;
						set.add(k);
						if (k != i && a <= k && k <= b)
							count++;
					}
			}
			System.out.println(count/2);
		}
	}
}
