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.File;
import java.io.IOException;
import java.util.ArrayList;
import java.util.Collections;
import java.util.HashMap;
import java.util.HashSet;
import java.util.List;
import java.util.Map;
import java.util.Set;

import com.google.common.base.Charsets;
import com.google.common.base.Predicate;
import com.google.common.collect.ArrayListMultimap;
import com.google.common.collect.Collections2;
import com.google.common.collect.HashMultimap;
import com.google.common.collect.Multimap;
import com.google.common.io.Files;

public class Main {
  
  public static void main(String[] args) throws IOException {

//    File f = new File("C-small-attempt0.in");
//    File f = new File("C-small-attempt1.in");
//    File f = new File("C-small-attempt2.in");
    File f = new File("C-large.in");
//    File f = new File("B-large.in");
//    File f = new File("A-large-practice.in");
//    File f = new File("example.in");
//    File f = new File("test.in");
    List<String> lines = Files.readLines(f, Charsets.UTF_8);

    int cases = Integer.valueOf(lines.get(0));
    int c = 0;
    while (c < cases) {
      int result = 0;
      c++;
      String[] tokens = lines.get(c).split(" ");
      int a = Integer.valueOf(tokens[0]);
      int b = Integer.valueOf(tokens[1]);
      
      Set<Integer> set = new HashSet<Integer>();
      for(int n = a; n < b; n++) {
        set.clear();
        String s = "" + n;
//        System.out.println(" >> " + s);
        int sl = s.length();
        for (int i = 0; i < sl; i++) {
          Integer shifted = shift(s, i);
          if (shifted != null && shifted <= b && shifted > n) {
//            System.out.println(shifted);
            set.add(shifted);
          }
        }
        result += set.size();
      }
      
      System.out.println("Case #" + c + ": " + result);
    }
  }

  private static Integer shift(String n, int i) {
    i++;
    int l = n.length();
    String s = n.substring(l - i, l) + n.substring(0,l - i);
    if (s.compareTo(n) <= 0) {
      return null;
    } else {
      return Integer.valueOf(s);
    }
  }

}