/*
 * 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.FileWriter;
import java.io.IOException;
import java.util.Scanner;


public class C {
	
	public static void main(String[] args) throws IOException {
		Scanner in = new Scanner(new File("C-small.in"));
		FileWriter fw = new FileWriter("C-small.out");
		
		int T = in.nextInt();
		
		for (int tc = 1; tc <= T; tc++) {
			int A = in.nextInt();
			int B = in.nextInt();
			int count = 0;
			for(int i = A; i < B; i++) {
				for(int j = i + 1; j <= B; j++) {
					if(isRecycledPair(i, j)) {
						count ++;
					}
				}
			}
			fw.write ("Case #" + tc + ": " + count + "\n");
		}
		fw.flush();
		fw.close();
	}
	
	public static boolean isRecycledPair(int a, int b) {
		boolean isRecycled = false;
		String str1 = Integer.toString(a);
		String str2 = Integer.toString(b);
		int len = str1.length();
		for(int i = 0; i < len - 1; i++ ) {
			str1 = str1.substring(len - 1) + str1.substring(0, len - 1);
			if(str1.equals(str2))
				isRecycled = true;
		}
		return isRecycled;
	}

}
