/*
 * 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.BufferedWriter;
import java.io.FileReader;
import java.io.FileWriter;
import java.io.IOException;


public class RecycledNumbers
{
	private static final String INPUT_FILE = "input.txt";
	private static final String OUTPUT_FILE = "output.txt";
	
	public int countSiblings(String lowerbound, String upperbound)
	{
		int n = lowerbound.length();
		int start = Integer.parseInt(lowerbound);
		int end = Integer.parseInt(upperbound);
		char[] upChars = upperbound.toCharArray();
		char[] lowChars = lowerbound.toCharArray();
		boolean[] hasSibling = new boolean[end - start + 1];
		int count = 0;
		for (int i = start; i <= end; i++)
		{
			if (hasSibling[i - start]) continue;
			
			char[] iChars = Integer.toString(i).toCharArray();
			int buf = 0;
			for (int j = 1; j < n; j++)
			{
				if (iChars[j] > upChars[0] || iChars[j] < lowChars[0]) continue;
				
				int tenpowj =  (int) Math.pow(10, n- j);
				int cycle = (int) (i / tenpowj + (i % tenpowj) * Math.pow(10, j)); 
				if (cycle > end || cycle < start || hasSibling[cycle - start]) continue;

				if (cycle <= i) continue;
				else
				{
					hasSibling[i - start] = true;
					hasSibling[cycle - start] = true;
					buf++;
				}	
			}
			count += (buf + 1) * buf /2;
		}
		return count;
	}
	
	public static void main(String[] args) throws NumberFormatException, IOException
	{
		RecycledNumbers recycledNumbers = new RecycledNumbers();
		Parser parser = new Parser();
		String[] input = parser.readInput(INPUT_FILE);
		String[] result = new String[input.length];
		for (int i = 0; i < input.length; i++)
		{
			String[] data = input[i].split(" ");
			result[i] = Integer.toString(recycledNumbers.countSiblings(data[0], data[1]));
		}
		parser.writeOutput(result, OUTPUT_FILE);
	}
}


class Parser
{
	public String[] readInput(String fileName) throws NumberFormatException, IOException
	{
		BufferedReader reader = new BufferedReader(new FileReader(fileName));
		int numberOfCases = Integer.parseInt(reader.readLine());
		String[] input = new String[numberOfCases];
		for (int i = 0; i < numberOfCases; i++)
		{
			input[i] = reader.readLine();
		}
		reader.close();
		return input;
	}
	
	public void writeOutput(String[] result, String file) throws IOException
	{
		FileWriter writer = new FileWriter(file);
		BufferedWriter bufferedWriter = new BufferedWriter(writer);
		for (int i = 0; i < result.length; i++)
		{
			bufferedWriter.write("Case #" + (i+1) +": " + result[i]);
			bufferedWriter.newLine();
		}
		bufferedWriter.flush();
		bufferedWriter.close();
	}
}

