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 recycled;

import java.io.BufferedReader;
import java.io.File;
import java.io.FileReader;
import java.io.IOException;

public class Main {

	public static void main(String[] args) throws IOException {
		File file = new File("C-small-attempt0.in");
		FileReader fr = new FileReader(file);
		BufferedReader in = new BufferedReader(fr);
		
		String line=in.readLine();
		String[] tokens;
		int num = Integer.parseInt(line);
		int i=1;
		int A,B;
		String str;
		int n,count;
		while(i<=num){
			line=in.readLine();
			tokens = line.split(" ");
			A = Integer.parseInt(tokens[0]);
			B = Integer.parseInt(tokens[1]);
			count = 0;
			for(int m=A;m<B;m++){
				str = Integer.toString(m);
				for(int j=0;j<str.length()-1;j++){
					str = str.substring(1) + str.charAt(0);
					n = Integer.parseInt(str);
					if(n>m && n<=B){
						count++;
					}
					if(n==m){
						break;
					}
				}
			}
			
			System.out.println("Case #"+i+": "+count);
			i++;
		}
	}

}
