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.*;

class RecycledNumbers
{
	static int A,B,result;
	public static void main(String args[]) throws IOException
	{
		FileInputStream fstream = new FileInputStream("C-large.in");
		DataInputStream dstream = new DataInputStream(fstream);
		BufferedReader br = new BufferedReader(new InputStreamReader(dstream));
		FileWriter fw = new FileWriter("output.txt");
		BufferedWriter out = new BufferedWriter(fw);
		
		int lines = Integer.parseInt(br.readLine());		//lines LINES OF INPUT TO FOLLOW
		
		for(int j=0;j<lines;j++)                        //EACH LINE FROM SECOND LINE
		{
			result=0;
		
			out.write("Case #"+(j+1)+": ");
		
			
			
			String str = br.readLine();
			String strAray[] = str.split(" ");
			A = Integer.parseInt(strAray[0]);
			B = Integer.parseInt(strAray[1]);
			
			for(int i=B;i>A;i--)
			{
				result = result+howMany(i);
				
				
			}
			
			out.write(Integer.toString(result));// write result
			out.newLine();
		}		
		fstream.close();
		out.close();
		//log.close();
	}
	static int howMany(int m) throws IOException
	{	
		int n,no=0;
		
		int length = (Integer.toString(m)).length();
		if(length==1)
		{
		
			return 0;
		}
		
		for(int i=1;i<length;i++)
		{
			n=rotate(i,m,length);
					
			if(A<=n && n<m && m<=B)
				no++;
		}
		
		return no;
	}
	static int rotate(int j, int m, int length) throws IOException
	{
		
		
	
		
		
		String s = Integer.toString(m);
		int[] intArray = new int[length];
		int number = 0;
	
 
		for (int i = 0; i < length; i++)
		{
			intArray[i] = Character.digit(s.charAt(i), 10);
		}
		for(int i=0;i<j;i++)					//rotate m , i times
		{
			int temp = intArray[0];
			for(int k=0;k<(length-1);k++)
			{
				intArray[k] = intArray[k+1];
			}
			intArray[length-1] = temp;
		}
		for(int i=0;i<length;i++)
		{
			number = number*10 + intArray[i];
		}
		
		return number;
	}
	
	
}