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 gcj2012.qr;

import java.io.BufferedReader;
import java.io.BufferedWriter;
import java.io.FileNotFoundException;
import java.io.FileReader;
import java.io.FileWriter;
import java.io.IOException;

public class ProblemC {
	public static void main(String[] args) throws FileNotFoundException, IOException{
		String nomeArquivo = "C-small-attempt0";
		
		BufferedReader br = new BufferedReader(new FileReader(nomeArquivo + ".in"));
		BufferedWriter bw = new BufferedWriter(new FileWriter(nomeArquivo + ".out"));
		int t = Integer.parseInt(br.readLine());
		for (int i=1; i<=t; i++){
			String campos[] = br.readLine().split(" ");
			int na = Integer.parseInt(campos[0]);
			int nb = Integer.parseInt(campos[1]);
			int total = 0;
			for (int m=na; m<nb; m++){
				for (int n=m+1; n<=nb; n++){
					String a = String.valueOf(m);
					String b = String.valueOf(n);
					int pb = b.indexOf(a.charAt(0));
					boolean achou = false;
					while (pb >= 0){
						int pa = 0;
						int x = pb;
						while (a.charAt(pa++) == b.charAt(pb++)){
							if (pb >= b.length()) pb = 0;
							if (pa >= a.length()){
								achou = true;
								break;
							}
						}
						if (achou){
							total++;
							break;
						}
						pb = b.indexOf(a.charAt(0), x+1);
					}
				}
			}
			bw.write("Case #" + i + ": " + total + "\n");
		}
		br.close();
		bw.close();
	}

}
