/*
 * 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.util.ArrayList;
import java.util.List;
import java.util.Scanner;


public class C {

	public static void main(String[] args) throws Exception{
		new C().solve(args[0]);
	}

	private void solve(String file) throws Exception {
		Scanner s = new Scanner(new File(file));
		int x=s.nextInt();
		for(int i=1;i<=x;i++) {
			int y = calculate(s.nextInt(),s.nextInt());			
			System.out.format("Case #%d: %d\n",i,y);
		}
			
	}

	private int calculate(int a, int b) throws Exception {
		int r = 0;
		for ( int w=a; w<=b ; w++) {
			String A = Integer.toString(w);
			int l = A.length();
			List<Integer> list=new ArrayList<Integer>();
			for(int i=0;i<l;i++) {
				A=A.substring(1)+A.charAt(0);
				int bb = Integer.parseInt(A);
				if ( bb==w ) continue;
				if ( bb<=w ) continue;
				if ( bb>b  ) continue;
				if ( list.contains(bb))continue;
				list.add(bb);
				r++;
			}
		}
		return r;
	}
}
