/*
 * 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;


public class problem {

	public static void main(String[] args)  throws IOException{
		final String filein = "C:\\Users\\BYTE\\Downloads\\C-small-attempt0.in";
		//final String filein = "C:\\Users\\byte\\Downloads\\NewFolder\\C-small-attempt6.txt";
	    BufferedReader in = new BufferedReader(new FileReader(filein));
	    
	    
		int tests=Integer.parseInt(in.readLine());
		
		int a=0,b=0,num=0;
		
		for(int i=0;i<tests;i++)
		{
			String s1[]=in.readLine().split(" ");
						
			a=Integer.parseInt(s1[0]);
			b=Integer.parseInt(s1[1]);
			
			//char [] arr=s1[0].toCharArray(); 
			
			for(int j=a; j<b;j++)
			{
				char [] arr=Integer.toString(j).toCharArray();
				for(int k=arr.length-1;k>0;k--)
				{
					if(arr[k]== '0')
						continue;
					else
					{
						
						String s = new String(arr);
						int z= Integer.parseInt(s.substring(k,arr.length)+s.substring(0,k));
						if(z >= a && z<=b  && z!=j && !(z<j)  )
							num++;
					}
				}
				
			}
			
			System.out.println("Case #"+(i+1)+": "+num);
			num=0;
			
		}
	}

}
