/*
 * 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.BufferedReader;
import java.io.FileReader;
import java.io.IOException;
import java.util.HashSet;
import java.util.Set;


public class RecycledNumbers {
	public static void main(String[] args) throws IOException {
		FileReader fReader = new FileReader("input/C-small-attempt0.in");
		BufferedReader br = new BufferedReader(fReader);
		int T = Integer.valueOf(br.readLine());
		int c = 1;
		while (T-- > 0) {
			String[] line = br.readLine().split("\\s");
			Integer first = Integer.valueOf(line[0]);
			Integer second = Integer.valueOf(line[1]);
			Set<String> set = new HashSet<String>();
			int totalCount = 0;
			for (int i = first; i <= second; ++i) {
				String ll = String.valueOf(i);
				for (int j = 1; j < ll.length(); ++j) {
					String tempLine = ll.substring(ll.length() - j);
					tempLine += ll.substring(0, ll.length() - j);
					if (tempLine.startsWith("0")) {
						continue;
					}
					int secondNum = Integer.valueOf(tempLine);
					if (i >= secondNum || secondNum > second) {
						continue;
					}
					String ss = i + "|" + secondNum;
					if (set.contains(ss)) {
						continue;
					}
					set.add(ss);
					totalCount++;
//					System.out.println(ss);
				}
			}
			System.out.println("Case #" + c + ": " + totalCount);
			c++;
			
		}
		fReader.close();
	}
}
