/*
 * To change this template, choose Tools | Templates
 * and open the template in the editor.
 */
package gcj;

import java.io.File;
import java.io.FileWriter;
import java.util.ArrayList;
import java.util.Scanner;

/**
 *
 * @author daniele
 */
public class GCJ_C {
    
    public static void main(String[] args) throws Exception{
        
        
        
        Scanner in = new Scanner(new File(args[0]));
        FileWriter out = new FileWriter("/home/daniele/Scrivania/Output");
        

        int prove=in.nextInt();
        int min,max;
        int cifre;
        int cifreaus;
        String temp;
        int aus;
        int count=0;
        ArrayList<Integer> vals = new ArrayList<Integer>();
        int jcount=0;
        ArrayList<Integer> perm = new ArrayList<Integer>();
        
        out.write("");
        out.flush();
        
        for(int i=1;i<=prove;i++){
            
            out.append("Case #" +i+": ");out.flush();
            
            min=in.nextInt();
            max=in.nextInt();
            
            for(int j=min;j<=max;j++){
               if(!vals.contains(j)){
                    temp=""+j;
                    cifre=temp.length();
                    aus=j;
                    perm.add(j);
                    for(int k=1;k<cifre;k++){
                        aus=rotateOnce(aus);
                        temp=""+aus;
                        cifreaus=temp.length();//elusione zeri iniziali
                        if(aus>=min && aus<=max && aus!=j && cifreaus==cifre && nobody(vals,perm)){ 
                            perm.add(aus);
                            jcount ++;
                            
                        }
                        
                    }
                    while(jcount>0){count+=jcount; jcount--;}
                    vals.addAll(perm);
                    perm= new ArrayList<Integer>();
                    
                }
            }
            out.append(count+"\n");out.flush();
            count=0;
            vals= new ArrayList<Integer>();
        }
        
        
        
    }
        static public int rotateOnce(int n){
            String s=""+n;
            if(s.length()>1){
                s=s.charAt(s.length()-1) + s.substring(0,s.length()-1);
                n=Integer.parseInt(s);
            }
            return n;
        }    
        
        static public boolean nobody(ArrayList<Integer> v,ArrayList<Integer> a){;
            for(int i=0;i<a.size();i++)
                if(v.contains(a.get(i))) return false;
            return true;
        } 
    
}


import java.io.BufferedReader;
import java.io.DataInputStream;
import java.io.FileInputStream;
import java.io.InputStreamReader;
import java.util.HashMap;
import java.util.HashSet;
import java.util.Set;

public class GCJ3 {

	
	/**
	 * @param args
	 */
	public static void main(String[] args) {
		// TODO Auto-generated method stub

		GCJ3 g = new GCJ3();

		// System.out.println();
		// long i1 = g.calculate(1, 9);
		// System.out.println();
//		 long i2 = g.calculate(10, 40);
		// System.out.println();
//		long i3 = g.calculate(100, 500);
//		long i4 = g.calculate(1111, 2222);
		
//		long i5 = g.calculate(28, 93);
		 
		// System.out.println(i1);
//		 System.out.println(i2);
//		 System.out.println(i3);
//		 System.out.println(i4);
//		System.out.println(i5);

		try {
			// Open the file that is the first
			// command line parameter
			FileInputStream fstream = new FileInputStream(
					"C:/PROG/java/work/tc/src/gcj3.txt");
			// Get the object of DataInputStream
			DataInputStream in = new DataInputStream(fstream);
			BufferedReader br = new BufferedReader(new InputStreamReader(in));
			String strLine;
			// Read File Line By Line
			int lineNum = 1;
			br.readLine();

			while ((strLine = br.readLine()) != null) {
				// Print the content on the console

//				 System.out.print(strLine+"\t");
				String[] val = strLine.split("\\s");
				System.out.print("Case #" + lineNum + ": ");
				System.out.println(g.calculate(Integer.valueOf(val[0]),
						Integer.valueOf(val[1])));
				
				
				
				
				// System.out.println();

				// System.out.println(strLine.charAt(0));
				lineNum++;
			}
			// Close the input stream
			in.close();
		} catch (Exception e) {// Catch exception if any
			e.printStackTrace();
		}

	}

	public long calculate(int A, int B) {
		
		HashMap<String,HashSet<String>> map = new HashMap<String,HashSet<String>>();

		String a = String.valueOf(A);
		String b = String.valueOf(B);
		if (a.length() == b.length() && a.length() > 1) {
			long count = 0;

			for (long i = A; i <= B; i++) {

				for (long l = 1; l < a.length(); l++) {
					long n = 0;
					long m = i;

					String nS = String.valueOf(m);

					String nS2 = nS.substring((int) l, a.length())
							+ nS.substring(0, (int) l);

					n = Long.valueOf(nS2);

					String nS3 = String.valueOf(n);

					if (n < m && nS3.length() == a.length() && A<=n && m<=B) {
//						System.out.println(n + " " + m);
						count++;
						if (map.get(nS3) == null){
							HashSet<String> s = new HashSet<String>();
							s.add(nS);
							map.put(nS3, s);
						}else {
							map.get(nS3).add(nS);
						}
					}
				}
			}
			
			long count2 = 0;
			for (String s : map.keySet()){
				
				for (Object o: map.get(s).toArray()){
					count2++;
				}
				
			}

			return count2;
		}

		return 0;
	}

}
