/*
 * 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.util.*;
import java.io.*;

public class RecycledNumbers {
	public void doMain() throws Exception {
		Scanner sc = new Scanner(new FileReader("input.in"));
		PrintWriter pw = new PrintWriter(new FileWriter("output.txt"));
		int T = sc.nextInt();
		for (int t=0; t<T; t++) {
			System.out.println("Now case " + (t+1));
			int A = sc.nextInt();
			int B = sc.nextInt();
			boolean[] flag = new boolean[B-A+1];
			for(int f=0; f<B-A; f++){
				flag[f] = false;
			}
			int ans = 0;
			for(int i=A; i<B; i++){
				if(flag[i-A]==false){
					String str = String.valueOf(i);
					String curstr = str;
					int NofR = 0;
					int NofRdN = 0;
					for(int j=0; j<str.length()-1;j++){
						String recycled = recycle(str);
						System.out.println(str + " " + recycled);
						int recycledInt = Integer.parseInt(recycled);
						if(recycledInt>Integer.parseInt(curstr) && recycledInt<=B) {
							System.out.println("found!");
							NofRdN++;
							flag[recycledInt-A] = true;
						}
						str = recycled;
					}
					System.out.println("NofRdN = " + NofRdN);
					ans = ans + ((NofRdN+1) * NofRdN)/2;
				}
			}
			System.out.println("Case #" + (t+1) + ": " + ans);
			pw.print("Case #" + (t+1) + ": " + ans);
			pw.println();
		}
		pw.flush();
		pw.close();
		sc.close();
	}

	public static String recycle(String str){
		String last = str.substring(str.length()-1);
		String substr = str.substring(0,str.length()-1);
		String recycled = last + substr;
		return recycled;
	}


	public static void main(String[] args) throws Exception {
		(new RecycledNumbers()).doMain();
	}
}

