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.FileReader;
import java.io.FileWriter;
import java.util.*;

public class Main
{
    public static void main(String[] args)
            throws Exception
    {
        BufferedReader in = new BufferedReader(new FileReader(args[0]));
        FileWriter out = new FileWriter(args[1]);
        int T = Integer.parseInt(in.readLine());

        for (int t = 1; t <= T; t++)
        {
            String data[] = in.readLine().split("\\ ");
            int A = Integer.parseInt(data[0]);
            int B = Integer.parseInt(data[1]);

            Set<Integer> checked = new LinkedHashSet<Integer>();

            int recycledPairNumber = 0;

            for (int i = A; i <= B; i++)
            {
                if (checked.contains(i))
                    continue;

                String s = Integer.toString(i);
                String ss = s + s;

                Set<Integer> recycled = new LinkedHashSet<Integer>();
                recycled.add(i);
                for (int j = 0; j < s.length(); j++)
                {
                    int candidate = Integer.parseInt(ss.substring(j, j + s.length()));
                    if (candidate >= A && candidate <= B)
                        recycled.add(candidate);
                }

                if (recycled.size() == 1)
                    continue;

                checked.addAll(recycled);

                recycledPairNumber += (recycled.size() * (recycled.size() - 1)) / 2;
            }

            out.write("Case #" + t + ": " + recycledPairNumber + "\n");
        }

        in.close();
        out.close();
    }
}
