import java.util.Scanner;

class Main {
	public static void main(String[] args) {
		Scanner sc = new Scanner(System.in);
		int t=sc.nextInt();
		int casos=1, a, b, n, m, cont;
		while(t!=0){
			a=sc.nextInt();
			b=sc.nextInt();
			if(a>b){
				int aux=a;
				a=b;
				b=aux;
			}
			System.out.printf("Case #%d: ",casos++);
			if(a==b){
				System.out.printf("%d\n",0);
			}else{
				cont=0;
				for(n=a;n<b;n++){					
					for(m=n+1;m<=b;m++){					
						if(isRecycled(n,m)) cont++;
					}
				}
				System.out.printf("%d\n",cont);
			}
			t--;
		}		
	}
	public static boolean isRecycled(int n1, int n2){
		String s1, s2, aux;
		s1 =  String.valueOf( n1 );
		s2 =  String.valueOf( n2 );		
		boolean r = false;		
		for(int i=0;i<s1.length();i++){
			aux="";
			aux=s1.substring(i,s1.length())+s1.substring(0,i);
//			System.out.println(aux);
			if(aux.equals(s2)){
				r=true;
				break;
			}
		}		
		return r;
	}
}

package com.gcj.parser;

import java.io.File;
import java.io.FileInputStream;
import java.io.FileNotFoundException;
import java.util.ArrayList;
import java.util.Scanner;

public class Parser {

	private String inputFileDest;
	private FileInputStream fileInputStream;

	public Parser(String inputFileDest) {
		super();
		this.inputFileDest = inputFileDest;
		try {
			fileInputStream = new FileInputStream(new File(inputFileDest));
		} catch (FileNotFoundException e) {
			e.printStackTrace();
		}
	}

	public String getInputFileDest() {
		return inputFileDest;
	}

	public void setInputFileDest(String inputFileDest) {
		this.inputFileDest = inputFileDest;
	}

	public FileInputStream getFileInputStream() {
		return fileInputStream;
	}

	public void setFileInputStream(FileInputStream fileInputStream) {
		this.fileInputStream = fileInputStream;
	}
	
	@SuppressWarnings("unchecked")
	public ArrayList<Integer>[] toArray(){
		
		Scanner scan = new Scanner(getFileInputStream());
		
		// The first line must be an number
		Integer nbOfLines = new Integer(scan.nextLine());
		
		ArrayList<Integer>[] parsedData = new ArrayList[nbOfLines];
		int index = 0;
		
		while (scan.hasNextLine()){
			
			String line = scan.nextLine();
			String[] datas = line.split(" ");
			
			ArrayList<Integer> dataRow = new ArrayList<Integer>();
			
			for (String data : datas){
				dataRow.add(new Integer(data));
			}
			
			parsedData[index] = dataRow;
			index++;
		}
		
		return parsedData;
		
	}
	
	
}
