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 Recycled {
    public static final PrintStream out = System.out;
    public static final BufferedReader in = new BufferedReader(new InputStreamReader(System.in));
    public int numCases;
    
    public void doCase(int caseNumber) throws Exception {
        String line = in.readLine();
        Scanner scan = new Scanner(line);
        int a = scan.nextInt();
        int b = scan.nextInt();
        int results = 0;
        for(int i = a; i <= b; i++) {
            //if(i%10000==0) out.println("looking at " + i);
            results += howManyCyclesGreaterThanMeButLessThanB(i,b);
        }
        out.println(results);
    }
    
    public int howManyCyclesGreaterThanMeButLessThanB(int i, int b) {
        int res = 0;
        int lastCycle = 0;
        for(int cycle : generateCycles(i)) {
            if(cycle==lastCycle) continue;
            if(cycle > i && cycle <= b) res++;
            lastCycle = cycle;
        }
        //if(i%10000==0) out.println("found good cycles " + res);
        return res;
    }
    
    public int[] generateCycles(int i) {
        int origi = i;
        int numDigits = numberOfDigits(i);
        int[] res = new int[numDigits-1];
        int pow = tenToThePower(numDigits-1);
        
        for(int j = 0; j < res.length; j++) {
            i = i / 10 + i % 10 * pow;
            res[j] = i;
        }
        Arrays.sort(res);
                
        //if(origi%10000==0) out.println("found cycles " + Arrays.toString(res));
        return res;
    }
    
    public static int tenToThePower(int i) {
        int res = 1;
        for(int j = 0; j < i; j++) {
            res *= 10;
        }
        return res;
    }
    
    public static int numberOfDigits(int i) {
        int res = 1;
        while(i/10 > 0) {
            i = i/10;
            res++;
        }
        return res;
    }
    
    public void run() throws Exception {
        numCases = Integer.parseInt(in.readLine().trim());
        for (int i = 1; i <= numCases; i++) {
            out.print("Case #" + i + ": ");
            doCase(i);
        }
    }
    
    public static void main(String[] args) throws Exception {
        new Recycled().run();
    }

}
