import java.io.BufferedReader;
import java.io.BufferedWriter;
import java.io.FileNotFoundException;
import java.io.FileReader;
import java.io.FileWriter;
import java.io.IOException;
import java.util.HashSet;
import java.util.Set;


public class GoogleC {
	public String szamol(String input){
		String result="";
		String a=input;
		Integer min=Integer.parseInt(a.substring(0,a.indexOf(' ')));
		a=a.substring(a.indexOf(' ')+1);
		Integer max=Integer.parseInt(a);
		Long count=0l;
		for(Integer i=min; i<=max; i++){
			String e1=i.toString();
			Set<Integer> db=new HashSet<Integer>(); 
			for (int j=1; j<e1.length();j++){
				
				String e2=e1.substring(j)+e1.substring(0,j);
				Integer k=Integer.parseInt(e2);
				if (k>i && k<=max){
					db.add(k);
					//System.out.println(e1+"\t"+e2);
				}
				
			}
			count+=db.size();
		}
		
		return count.toString();
	}
	public static void main(String[] args) {
		GoogleC a=new GoogleC();
		//String filename="input.txt";
		//String filename="C-small-attempt0.in";
		String filename="C-large.in";
		String thisLine;
		try {
			BufferedReader br = new BufferedReader(new FileReader(filename));
			BufferedWriter bw= new BufferedWriter(new FileWriter(filename+".out"));
			thisLine=br.readLine();
			Integer tnum=Integer.parseInt(thisLine);
		     for(int i=0;i<tnum;i++) { // while loop begins here
		    	 	thisLine=br.readLine();
		           System.out.println(thisLine);
		           System.out.println("Case #"+(i+1)+": "+a.szamol(thisLine)+"\n");
		           bw.write("Case #"+(i+1)+": "+a.szamol(thisLine)+"\n");
		         } // end while 
		        // end try
		     br.close();
		     bw.close();
		} catch (FileNotFoundException e) {
			// TODO Auto-generated catch block
			e.printStackTrace();
		} catch (IOException e) {
			// TODO Auto-generated catch block
			e.printStackTrace();
		}


	}

}

import java.io.BufferedReader;
import java.io.File;
import java.io.FileInputStream;
import java.io.InputStreamReader;
import java.io.PrintWriter;
import java.util.Arrays;



public class RecycledNumbers {

	static String inputLargeFile = "C-large.in";
	static String inputSmallFile = "C-small-attempt0.in";
	
	static String outSmallFile = "C-small-attempt0.out";
	static String outLargeFile = "C-large.out";
	
	static BufferedReader br ;
	static PrintWriter out ;
	public static void main(String[] args) throws Exception{
		
		br = new BufferedReader(new InputStreamReader(new FileInputStream(inputLargeFile)));
		out = new PrintWriter(new File(outLargeFile));
		
		String input = br.readLine();
		
		int testcases = Integer.parseInt(input.trim());
		
		for (int i = 0; i < testcases; i++) {
			   String range =  br.readLine();
			   String[] numbers = range.split(" ");
			     
			   int A = Integer.parseInt(numbers[0].trim());
			   int B = Integer.parseInt(numbers[1].trim());
               String part1=null;
               String part2=null;
               int count=0;
               int m =0;
               int endIndex =0;
               int beignIndex=0;
               
               String number = null; 
               String pair = null;
               
			   for(int n=A;n<=B;n++ ){      
		               
		              number = String.valueOf(n);
		              endIndex = number.length()-1;
		              
		             int last=0;
					 for(int p=endIndex;p>0;p--){
						 
						pair =  number.substring(p)+number.substring(beignIndex,p);
					    m=Integer.parseInt(pair); 
						
					  
					    if(m>n&&m<=B&&m!=last){
							
							count++;
							last=m;
							
							//out.println("count : " + count);
						}
					 
					 } 
				   }
				   
			   out.println("Case #"+ (i+1)+ ": " + count);	   
		}
			   
			   
			
			 	   				   
		out.close();
		br.close();
	   
			
		}
		
		
	}


