import java.util.*;
import java.io.*;

public class recycled_numbers {
	public static void main(String[]a) throws Exception{
		
		Scanner f = new Scanner(new File(a[0]));
		int result=0;
		int A,B;
		String n,m;
		HashSet<String> s=new HashSet<String>();
		
		int T=f.nextInt();	//T total case count
		for (int t=1; t<=T;t++){//for each case t
			
			s.clear();
			result=0;				//reset
			A=f.nextInt();B=f.nextInt();	//get values for next case
			
			if (A==B)result=0;//remove case not meeting problem limits 
			else{
				for(int i=A;i<=B;i++){//for each int in range
					n=Integer.toString(i);
					m=new String(n);
					//System.out.println(n);
					for (int j=1;j<n.length();j++){//move each digit to the front & test
						m = m.substring(m.length()-1)+m.substring(0,m.length()-1);
						if(m.matches("^0+[\\d]+")!=true &&
								Integer.parseInt(m)<=B &&
								Integer.parseInt(n)<Integer.parseInt(m)){
							s.add(new String(n+","+m));
							//result++;
							//System.out.println(" matched: "+m);
						}
						
					}
				}
				result = s.size();
			}

			//display output
			System.out.println("Case #" + t + ": " + result);
		}
	}
}

import java.io.BufferedReader;
import java.io.BufferedWriter;
import java.io.FileReader;
import java.io.FileWriter;
import java.io.IOException;
import java.util.ArrayList;
import java.util.List;

public class FileIO {
	public static List<String> readFile(String fileName) {
		List<String> list = new ArrayList<String>();
		try {
			FileReader fr = new FileReader(fileName);
			BufferedReader in = new BufferedReader(fr);
			
			String s; 
			while ( (s=in.readLine()) != null ) {
				list.add(s);
			}
			
			in.close();
			fr.close();
			
		} catch(IOException e) {
			e.printStackTrace();
			System.out.println("ERROR");
		}
		
		return list; 
	}
	
	public static void writeFile(String fileName, List<String> contents) {
		try {
			FileWriter fw = new FileWriter(fileName, false); // overwrite
			BufferedWriter out = new BufferedWriter(fw);

			for (String s : contents) {
				out.write(s);
				out.write("\r\n");
			}

			out.close();
			fw.close(); 

			
		} catch(IOException e) {
			e.printStackTrace();
			System.out.println("ERROR");
		}

	}
}
