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.File;
import java.io.FileNotFoundException;
import java.util.*;

import static java.lang.Math.*;
public class ProC {

	/**
	 * @param args
	 * @throws FileNotFoundException 
	 */
	public static void main(String[] args) throws FileNotFoundException {
		// TODO Auto-generated method stub
		File file = new File("A-small-practice.in");
		Scanner scr = new Scanner(file);
		int i= scr.nextInt();
		int count =0;
		for (int a =1; a<= i; a++) {
			int j =scr.nextInt();
			int k =scr.nextInt();
			for (int b=j; b<=k;b++){
				for (int c =1; c<log(b)/log(10)+1; c++) {
					int last = (int) ((int)b%(Math.pow(10, c)));
					int rest = (int) ((int)b/Math.pow(10, c));
					
					int temp = (int)(log(b)/log(10)+1-c); 
					int temp2 =(int)Math.pow(10, temp);
					int num =  last*temp2 +rest;
					if (num<=k&&num>b){
						count ++;
//						System.out.println(b+" "+num);
					}
					
					
				}
				
			}
			System.out.println("Case #" +a+": "+count);
			count=0;
		}
	}

}
