/*
 * 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.FileNotFoundException;
import java.io.FileReader;
import java.io.IOException;

public class Recycle {

	public static void main(String[] args) {
		new Recycle().readFile();
	}

	private void readFile() {
		try {
			BufferedReader reader = new BufferedReader(new FileReader(
					"input.txt"));
			maxCases = Integer.parseInt(reader.readLine());
			for (int i = 1; i <= maxCases; i++) {
				String singleCase = reader.readLine();
				solve(singleCase);
				System.out.println("Case #" + i + ": " + (counter-sym));
				clear();
			}

		} catch (FileNotFoundException e) {
			e.printStackTrace();
		} catch (NumberFormatException e) {
			e.printStackTrace();
		} catch (IOException e) {
			e.printStackTrace();
		}
	}

	private void clear() {
		counter =sym=0;
	}

	private int maxCases;
	int counter, min, max,sym;

	private void solve(String singleCase) {
		String vals[] = singleCase.split(" ");
		min = Integer.parseInt(vals[0]);
		max = Integer.parseInt(vals[1]);
		for (int i = min; i <= max; i++) {
			for (int j = 1; j < (i + "").length(); j++) {
				int rev = permuteNumber(i + "", j);
				if (rev <= max && rev >= i && checkRev(i) && i!=rev) {
					if(checkSymmetry(i))
						sym++;
					counter++;
				}
			}
		}
		sym = sym/2;
	}

	private boolean checkRev(int i) {
		char ch[] = (i + "").toCharArray();
		for (char c : ch) {
			if (ch[0] == c) {
				continue;
			} else {
				return true;
			}
		}
		return false;
	}

	public int permuteNumber(String st, int pos) {
		String s = st.substring(st.length() - pos)
				+ st.substring(0, st.length() - pos);
		return Integer.parseInt(s);
	}
	private boolean checkSymmetry(int i){
		String s =(i+"");
		if(s.substring(0,s.length()/2).equals(s.substring(s.length()/2))){
			return true;
		} else{
			return false;
		}
	}
}
