/*
 * 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 qualC
{
	public static void main(String[] args) throws IOException
	{
		Scanner sin = new Scanner(new File("/Users/G/Documents/Programming/Java/CodeJam2012/C-small-attempt0.in"));
		
		int t = sin.nextInt(), a, b;
		for(int i = 1; i <= t; ++i)
		{
			a = sin.nextInt();
			b = sin.nextInt();
			int ret = 0;
			
			for(long j = a; j <= b; ++j)
			{
				if(j >= 10)
				{
					int length = 0;
					long firstPosition, shift=j;
					for(firstPosition = 1; firstPosition <= shift; firstPosition*=10) length++;
					firstPosition /= 10;
					
					long[] numbers = new long[length];
					
					for(int k = 0; k < length; ++k)
					{
						long lastDigit = shift%10;
						shift /= 10;
						shift += firstPosition*lastDigit;
						
						numbers[k] = shift;
						boolean found = false;
						
						for(int m = 0; m < k; ++m)
						{
							if(shift == numbers[m])
							{
								found = true;
								break;
							}
						}
						
						if(shift >= a && shift <= b && j < shift && lastDigit != 0 && !found)
						{
							ret++;	
						}
					}	
				}
			}
			
			System.out.println("Case #"+i+": "+ret);
		}
	}
}
