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();
		}


	}

}

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

import java.io.BufferedReader;
import java.io.BufferedWriter;
import java.io.FileReader;
import java.io.FileWriter;

/**
 *
 * @author ALEX
 */
public class Recycle {

    /**
     * @param args the command line arguments
     */
    public static void main(String[] args) {
        // TODO code application logic here
        try {
             FileReader fin=new FileReader("C-large.in");
             BufferedReader in = new BufferedReader(fin);
             FileWriter fout=new FileWriter("result.txt");
             BufferedWriter out=new BufferedWriter(fout);
             int nrt;
             nrt=Integer.valueOf(in.readLine());
             String [] med;
             String str;
             for(int i=1;i<=nrt;i++)
             {  
                 str=in.readLine();
                 med=str.split(" ");
                 int A=Integer.valueOf(med[0]);
                int B=Integer.valueOf(med[1]);
                int nr=0;
                String s;
                for (int a=A;a<=B;a++){
                    int x;
                    int mo=1;
                    while((a/mo)%10==0){
                mo=mo*10;
                    } 
                    if(a/mo>9){
                        mo=mo*10;
                        s=(a%mo+""+a/mo);
                        x=Integer.valueOf(s);
                    }
                    else continue;                    
                    while(a!=x){
                        if(x>=A&&x<=B){
                            nr++;
                        }
                        mo=1;
                    while((x/mo)%10==0){
                        mo=mo*10;
                    } 
                    if(x/mo>9){
                        mo=mo*10;
                        s=(x%mo+""+x/mo);
                        x=Integer.valueOf(s);
                    }
                    else break; 
                    }      
                }
                System.out.println(nr/2);
                out.write("Case #"+i+": "+nr/2);
                out.newLine();
                }
             in.close();
             fin.close();
             out.close();
             fout.close();
             }
        catch(Exception e){} 
    }       
             
}
