package qual;

import java.util.Scanner;

public class RecycledNumbers {

	public static void main(String[] args) {
		new RecycledNumbers().run();

	}

	private void run() {
		Scanner sc = new Scanner(System.in);
		int T = sc.nextInt();
		for (int t = 0; t < T; t++) {
			int A = sc.nextInt();
			int B = sc.nextInt();
			int result = solve(A, B);
			System.out.printf("Case #%d: %d\n", t + 1, result);
		}
	}

	public int solve(int A, int B) {
		int result = 0;
		for (int i = A; i <= B; i++) {
			int dig = (int) Math.log10(A/*same as B*/) + 1;
			int aa = i;
			for (int d = 0; d < dig - 1; d++) {
				aa = (aa % 10) * (int)Math.pow(10, dig - 1) + (aa / 10);
				if (i == aa) {
					break;
				}
				if (i < aa && aa <= B) {
//					System.out.printf("(%d, %d) ", i, aa);
					result++;
				}
			}
		}
		return result;
	}

}

package google.problems;

import google.loader.Challenge;
import google.loader.ChallengeReader;

import java.util.ArrayList;
import java.util.List;


public abstract class AbstractReader implements ChallengeReader {

	private String[] lines;
	private List<Challenge> challenges;
	private int actualLine;

	public AbstractReader(){
		challenges = new ArrayList<Challenge>();
	}
	
	
	protected void setLines(String[] input) {
		lines=input;
	}

	protected String[] getLines(){
		return lines;
	}
	
	protected int getNumberOfChallenges() {
		return Integer.parseInt(lines[0]);
	}
	
	@Override
	public List<Challenge> createChallenges(String[] input) {
		setLines(input);
		readChallenges();
		return challenges;
	}

	private void readChallenges() {
		int numOfChallanges = getNumberOfChallenges();
		setActualLine(1);
		actualLine = 1;
		for(int i=1;i<=numOfChallanges; i++){
			challenges.add(createChallenge(i));
		}
	}
	
	protected int[] asInt(String values) {
		String[] split = values.split(" ");
		int res [] = new int[split.length];
		for(int i=0;i<split.length;i++){
			res[i]=Integer.parseInt(split[i]);
		}
		return res;
	}

	protected List<Integer> asIntList(String values) {
		List<Integer> res = new ArrayList<Integer>();
		for(int i : asInt(values)){
			res.add(i);
		}
		return res;
	}
	

	protected abstract Challenge createChallenge(int i) ;
	
	protected void setActualLine(int i) {
		actualLine =i;
	}
	protected int getActualLine(){
		return actualLine;
	}
	
}
