import java.io.*;

class code1
{
	public static void main(String args[]) throws Exception 
	{
		File ii = new File ("C-small-attempt1.in");
		FileInputStream fis = new FileInputStream(ii);
		BufferedReader  br = new BufferedReader(new InputStreamReader (fis));
		int cases = Integer.parseInt(br.readLine());
		FileOutputStream fout = new FileOutputStream ("output.txt");
		DataOutputStream dout = new DataOutputStream (fout);
		int total=0;
		for(int i=0;i<cases;i++){
		String temp = br.readLine();
		String parts [] = temp.split(" ");
		int lower = Integer.parseInt(parts[0]);
		int upper = Integer.parseInt(parts[1]);
		System.out.println(lower+" "+upper);
		
		for(int j=lower;j<=upper;j++)
		{
			int abc = j;int length=0;
			if(j<10)continue;
			while (abc!=0){abc/=10;length++;}
			abc=j;
			for(int m=0;m<length-1;m++){
				int shift = abc%10;
				abc=abc/10;
				System.out.println("hi "+j);
				abc=abc+shift*power(10,length-1);
				if(abc<=upper&&shift!=0&&abc>j)total++;
				System.out.println(total);
			}
		}
 		dout.writeBytes("Case #"+(i+1)+ ": "+total+"\n");
 		total=0;
		}//for close
		
	}

	private static int power(int i, int j) {
		int no=1;
		for(int a=0;a<j;a++){no=10*no;}
		return no;
	}
}
/*
 * To change this template, choose Tools | Templates
 * and open the template in the editor.
 */

package javaapplication18;

/**
 *
 * @author USER-1
 */
import java.io.*;
public class Main {

    /**
     * @param args the command line arguments
     */

    public static boolean check_recycled(int m,int n)
    {
    int rem=0,div=m;
    Integer k=new Integer(m);
    Integer k1=new Integer(n);
    String g=k.toString();
    String g1=k1.toString();
    int c=0,l=g.length(),l1=g1.length();
    while(c<l)
    {
        int w=0,ml=0;
        String temp="",temp1="";
    while(w<=c)
    {
      temp=String.valueOf(g.charAt(l-w-1))+temp;
      
      w++;
    }
     while(ml<=(l-w-1))
     {
     temp1=temp1+String.valueOf(g.charAt(ml));
     ml++;
     }
    //System.out.println(temp1);
    
    if((temp+temp1).equals(g1))
    {
return true;
    }
    c++;
    }
    return false;
    }


    public static void main(String[] args) {
        // TODO code application logic here
    
    try
    {
    BufferedReader br=new BufferedReader(new FileReader("a1.in.txt"));
    PrintWriter out=new PrintWriter(new FileWriter("out.txt"));
    int t=Integer.parseInt(br.readLine());
    int q=0;
    while(q<t)
    {
    String h[]= br.readLine().split(" ");
    int a=Integer.parseInt(h[0]);
    int b=Integer.parseInt(h[1]),n=0,m=0,p=0;
    //out.println(check_recycled(12345,34512));
    for(int i=a;i<b;i++)
    {
    n=i;
    for(int j=a+1;j<=b;j++)
    {
    m=j;
    if(m>n)
    {
     if(check_recycled(n,m))
     {
     p++;
     
     }

    }
    }
    }
    out.println("Case #"+(q+1)+":"+" "+p);
    q++;
    }
    out.flush();
    }
    catch(Exception e)
    {
    System.out.print(e.toString());


    }

    }

}
