import java.io.*;

class code1
{
	public static void main(String args[]) throws Exception 
	{
		File ii = new File ("C-small-attempt1.in");
		FileInputStream fis = new FileInputStream(ii);
		BufferedReader  br = new BufferedReader(new InputStreamReader (fis));
		int cases = Integer.parseInt(br.readLine());
		FileOutputStream fout = new FileOutputStream ("output.txt");
		DataOutputStream dout = new DataOutputStream (fout);
		int total=0;
		for(int i=0;i<cases;i++){
		String temp = br.readLine();
		String parts [] = temp.split(" ");
		int lower = Integer.parseInt(parts[0]);
		int upper = Integer.parseInt(parts[1]);
		System.out.println(lower+" "+upper);
		
		for(int j=lower;j<=upper;j++)
		{
			int abc = j;int length=0;
			if(j<10)continue;
			while (abc!=0){abc/=10;length++;}
			abc=j;
			for(int m=0;m<length-1;m++){
				int shift = abc%10;
				abc=abc/10;
				System.out.println("hi "+j);
				abc=abc+shift*power(10,length-1);
				if(abc<=upper&&shift!=0&&abc>j)total++;
				System.out.println(total);
			}
		}
 		dout.writeBytes("Case #"+(i+1)+ ": "+total+"\n");
 		total=0;
		}//for close
		
	}

	private static int power(int i, int j) {
		int no=1;
		for(int a=0;a<j;a++){no=10*no;}
		return no;
	}
}

import java.io.BufferedInputStream;
import java.io.FileInputStream;
import java.io.InputStream;
import java.util.*;

import javax.sql.rowset.Joinable;

import static java.lang.Math.*; 
import static java.util.Arrays.*;
import static java.lang.Integer.*;
import static java.lang.Character.*;  



public class C {
	static class Sol implements Runnable{
		boolean started = false;
		Scanner scan;
		int caseN;
		int a,b;
		int intLine(){
			return parseInt(scan.nextLine());
		}
		
		
		int res = 0;

		void readInput() {
			a = scan.nextInt();
			b = scan.nextInt();
		}

		public void run(){
			int[]u = new int[20];
			for(int i=a;i<=b;i++){
				String s = ""+i;
				int p =0;
				for(int j = 1;j<s.length();j++){
					String ns = s.substring(j)+s.substring(0,j);
					int x = parseInt(ns);
					boolean ok = true;
					if (x<=i)ok = false;
					if(x>b)ok = false;
					for(int k=0;k<p;k++)if(x==u[k])ok = false;
					if(ok){
						u[p++]=x;
					}
				}
				res+=p;
			}
			System.err.println(caseN+" finished");
		}

		void printResult() {
			System.out.format("Case #%d: %d\n",caseN+1, res);
		}
	}

    static Sol[] solvers;
    
    static synchronized Sol getNext() {
    	for(int i=0;i<solvers.length;i++) {
    		if(!solvers[i].started){
    			solvers[i].started = true;
    			return solvers[i];
    		}
    	}
    	return null;
    }
    
    static class Worker extends Thread {
    	public void run() {
    		while(true) {
    			Sol sol = getNext();
    			if (sol == null)break;
    			sol.run();
    		}
    	}
    }
    
	public static void main(String[] args) throws Exception{
		Locale.setDefault(Locale.US);
		String cn = C.class.getName();
		String sampleName = cn+"-sample.in";
		String smallName = cn+"-small-attempt0.in";
		String largeName = cn+"-large.in";
		InputStream in = new BufferedInputStream(new FileInputStream(smallName));
		Scanner scan = new Scanner(in);
		int N = parseInt(scan.nextLine());
		solvers = new Sol[N];
		for(int i=0;i<solvers.length;i++) {
			solvers[i] = new Sol();
			solvers[i].scan = scan;
			solvers[i].caseN = i;
			solvers[i].readInput();
		}
		Thread[]threads = new Thread[32];
		for(int i=0;i<threads.length;i++){
			threads[i]=new Worker();
			threads[i].start();
		}
		for(int i=0;i<threads.length;i++){
			threads[i].join();
		}
		for(Sol s:solvers)s.printResult();
		
	}

}
