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.*;
import java.util.*;

public class CodeJamCLarge {
	public static void main (String[] args) throws IOException {
		int i, j, k;
		long startTime = System.currentTimeMillis();
		File inFile  = new File("C-large.in");  // File to read from
		File outFile = new File("C-large.out");
		
		BufferedReader reader = new BufferedReader(new FileReader(inFile));
		BufferedWriter writer = new BufferedWriter(new FileWriter(outFile));
	
		HashMap<Integer, Integer> map = new HashMap<Integer, Integer>();
		String line = null;
		line = reader.readLine();
		int cases = Integer.parseInt(line);
		int counter = 1;
		
        while ((line=reader.readLine()) != null) {
        	int A,B;
        	int pairs = 0;        	
        	String[] node = line.split(" ");
        	A = Integer.parseInt(node[0]);
        	B = Integer.parseInt(node[1]);
        	
        	//char[] num = new char[node[0].length()];
        	for(i = A; i <= B; i++) {
        		String iStr = String.valueOf(i);
        		String newNum;
        		String newNum2;
        		for(j = 1; j < node[0].length(); j++) {  			
        			newNum = iStr.substring(j);
        			newNum2 = newNum.concat(iStr.substring(0, j));
        			int n = Integer.parseInt(newNum2);
        			if(n > i && n <= B) {        				
        				if(map.containsKey(i) && map.get(i) == n) {
        					;
        				} else {
        					map.put(i, n);
        					pairs++;
        				}
        				
        				
        			}
        		}
        		
        	}
        	map.clear();
        	//System.out.println("Case #"+counter+": "+pairs);
        	writer.write("Case #"+counter+": "+pairs);        	
        	writer.newLine();
        	counter++;        		
        }
        
        writer.close();       
        long endTime   = System.currentTimeMillis();
        long totalTime = endTime - startTime;
        System.out.println("Total Time: " + totalTime);		
	}
 }
