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);

			}
		}

	}
}

package source;

import java.io.BufferedWriter;
import java.io.File;
import java.io.FileWriter;
import java.io.IOException;
import java.util.Scanner;
import java.util.Set;
import java.util.TreeSet;

public class RecycledNumbers {

	/**
	 * @param args
	 */
	public static void main(String[] args) throws IOException{
		Scanner scan = new Scanner(new File(""));
		BufferedWriter bw = new BufferedWriter(new FileWriter(""));
		
		int testCases = new Integer(scan.nextLine());
		Set<String> pairs = null;
		
		for(int i=0; i < testCases; i++){
			String[] nums = scan.nextLine().split(" ");
			int min = new Integer(nums[0]);
			int max = new Integer(nums[1]);
			pairs = new TreeSet<String>();
			
			int testNum = min;
			while(testNum <= max){
				getRecycled(testNum, pairs, min, max);
				++testNum;
			}
			bw.write("Case #"+(i+1)+": "+pairs.size()+"\n");
		}
		bw.flush();
		bw.close();
	}
	
	public static void getRecycled(int testNum, Set<String> pairs, int min, int max){
		int rec = 0;
		String number = Integer.toString(testNum);
		
		StringBuilder sb = new StringBuilder("");
		for(int i=1; i < number.length(); i++){
			sb.append(number.substring(i)).append(number.substring(0, i));
			try{
				rec = new Integer(sb.toString());
				if(testNum != rec && min <= rec && rec <= max && 
						!pairs.contains(testNum+"-"+rec) && !pairs.contains(rec+"-"+testNum)){
					pairs.add(testNum+"-"+rec);
				}
			} catch(NumberFormatException e){}
			sb.delete(0, sb.length());
		}
	}

}
