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.util.Scanner;
class recycled{
public static void main(String args[])
{
Scanner s=new Scanner(System.in);
int t,i,n,m,a,b,o,f=0,c=0,ca=1;
t=s.nextInt();
for(i=1;i<=t;i++)
{
a=s.nextInt();
b=s.nextInt();
for(n=a;n<b;n++)
{
String str=Integer.toString(n);
int l=str.length();
f=rep(str,l,b);
if(f==1)
c--;
for(o=l-1;o>0;o--)
{
m=Integer.parseInt(str.substring(o)+str.substring(0,o));
if(m>n && m>a && m<=b)
{
c++;
}
}
f=0;
}
System.out.println("Case #"+ca+": "+c);
c=0;
ca++;
}
}
private static int rep(String str,int l,int b)
{
int i,f=0;
if(l%2==0 && l>3 && (int)(str.charAt(0))<(int)(str.charAt(1)) && Integer.parseInt(str.charAt(l-1)+str.substring(0,l-1))<=b)
{
for(i=2;i<l;i++)
{
if(str.charAt(i)==str.charAt(i-2))
f=1;
else 
return 0;
}
}
return f; 
}
}