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;
	}
}
import java.io.BufferedReader;
import java.io.InputStreamReader;
import java.util.HashMap;
import java.util.Map;

import javax.swing.JFrame;
import javax.swing.JTextField;

public class gcj_c {
	public static void main(String[] args) {
	try{
		BufferedReader buff = new BufferedReader(new InputStreamReader(System.in));
		String T = buff.readLine();
		for(int p=0;p<Integer.parseInt(T);p++){
			String AB = buff.readLine();
			String arr[] = AB.split(" ");
			String A = arr[0];
			String B = arr[1];
			int A_int = Integer.parseInt(A);
			int B_int = Integer.parseInt(B);
			int count = 0;
			for(int a = A_int;a<=B_int;a++){
				String a_str = String.valueOf(a);
				String a_con = a_str.concat(a_str);
				for(int b =a+1;b<=B_int;b++){
					String b_str = String.valueOf(b);
					CharSequence chr = b_str.subSequence(0, b_str.length());
					if(a_con.contains(chr)){
						//System.out.println("a_con: " + a_con + "b_str:" + b_str);
						count++;
					}
				}
			}
		System.out.println("Case #" + (p+1) + ": " + count);	
		}
	}catch(Exception e){System.out.println(e);}
	}
}
