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.BufferedWriter;
import java.io.FileNotFoundException;
import java.io.FileReader;
import java.io.FileWriter;
import java.io.IOException;
import java.util.ArrayList;
import java.util.Date;


public class CSol {

	/**
	 * @param args
	 */
	public static void main(String[] args) {
		
		Date d1 = new Date();
		//solveC("c.in", "c.out");
		//solveC("C-small-attempt0.in", "C-small-attempt0.out");
		solveC("C-large.in", "C-large.out");
		Date d2 = new Date();
		System.out.println("time: " + (d2.getTime() - d1.getTime()) + " ms");

	}

	private static void solveC(String in, String out) {
		try {
			FileReader fis = new FileReader(in);
			BufferedReader  dis = new BufferedReader (fis);
			
			FileWriter fw = new FileWriter(out);
			BufferedWriter bw = new BufferedWriter(fw);

			
			int t = Integer.parseInt(dis.readLine());
			for (int i = 0; i < t; i++) {
				String e = dis.readLine();
				String ee[] = e.split(" ");
				int a = Integer.parseInt(ee[0]);
				int b = Integer.parseInt(ee[1]);
				//System.out.println(a +  " " + b);
				
				
				String result = ""+solve(a,b);
				//System.out.println(result);
				
				bw.write("Case #" + (i+1) + ": " + result + "\n");
			}
			
			
			bw.flush();
			bw.close();
			fw.close();
			dis.close();
			fis.close();
		} catch (FileNotFoundException e) {
			e.printStackTrace();
		} catch (IOException e) {
			e.printStackTrace();
		} finally {
			
		}
	}

	private static long solve(int a, int b) {
		long sum = 0;
		//System.out.println("solve: " + a+ " " + b);
		ArrayList<String> uniq = new ArrayList<String>();
		
		
		for (int ii = a; ii <= b; ii++) {
			//System.out.println(ii);

			String s = "" +ii;
			String rot = "" + s+s;
			
			
			
			for (int i = 1; i < s.length(); i++) {
				String r = rot.substring(i, i+s.length());
				if (r.charAt(0) == '0') 
					continue;
								
				if (s.compareTo(r) < 0) {
					if (r.compareTo(""+b) <= 0) {
						if (r.compareTo(""+a) >= 0) {
							if (!uniq.contains(s+r)) {
								uniq.add(s+r);
								//System.out.println(s + " " + r);
								sum++;
							}
						}
					}
				}
			}
			
		}
		
		return sum;
	}

}
