import java.util.HashSet;
import java.util.Scanner;

public class C {

	static HashSet p = new HashSet();
	static int low;
	static int high;
	int count = 0;

	public static void main(String[] args) {

		Scanner sc = new Scanner(System.in);
		int no = sc.nextInt();

		for (int i = 1; i <= no; i++) {

			p.clear();
			low = sc.nextInt();
			high = sc.nextInt();

			for (int l = low; l <= high; l++) {
				recycle(l);
			}
			System.out.println("Case #" + i + ": " + p.size());

		}
	}

	public static void recycle(int no) {

		String s = Integer.toString(no);
		for (int i = 0; i < s.length(); i++) {
			String rec = s.substring(i) + s.substring(0, i);
			int r = Integer.parseInt(rec);
			if (r != no && r >= low && r <= high) {
				int min = Math.min(r, no);
				int max = Math.max(r, no);
				String a = Integer.toString(min) + "" + Integer.toString(max);
				p.add(a);

			}
		}

	}
}

import java.io.BufferedWriter;
import java.io.File;
import java.io.FileNotFoundException;
import java.io.FileWriter;
import java.util.Arrays;
import java.util.Scanner;

public class Read {
	int noOfTestCases;
	
	
int []nums;
	public void test() throws FileNotFoundException{
		File file = new File("out");
		File file2 = new File("out2");
		Scanner scanner = new Scanner(file);
		Scanner scanner2 = new Scanner(file2);
		while(scanner.hasNext()){
			String l1 = scanner.nextLine();
			String l2 = scanner2.nextLine();
			if(!l2.equals(l1)){
				System.out.println(l1);
				System.out.println(l2);
				System.out.println("wrong");
			}
		}
	}

	public void Read(String name) {
		File file = new File(name);

		try {

			Scanner scanner = new Scanner(file);
			String line = scanner.nextLine();
			noOfTestCases = Integer.parseInt(line);
			nums =  new int[noOfTestCases*2];
			int i=0;
			while(i<noOfTestCases){
			line = scanner.nextLine();
			line=line.replaceAll("  ", "");
			String []numS = line.split(" ");
			nums[2*i]=Integer.parseInt(numS[0]);
			nums[2*i+1]=Integer.parseInt(numS[1]);
			i++;
			}
		} catch (FileNotFoundException e) {

		}

	}
	public void write(String fname,String data)
	{
		try{
			  // Create file 
			  FileWriter fstream = new FileWriter(fname);
			  BufferedWriter out = new BufferedWriter(fstream);
			  out.write(data);
			  //Close the output stream
			  out.close();
			  }catch (Exception e){//Catch exception if any
			  System.err.println("Error: " + e.getMessage());
			  }
	}
public static void main(String[] args) throws FileNotFoundException {
	Read r = new Read();
	r.test();
//	for (int i = 0; i < 50; i++) {
//		System.out.println("1000000 2000000");
//	}
}
}
