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;
	}
}
/**
 * @(#)RecycledNumbers.java
 *
 *
 * @author CristianDumitruPopov
 * @version 1.00 2012/4/14
 */
import java.io.*;
import java.util.*;

public class RecycledNumbers {
	
	public static int lengthOf(int x) {
		int c = 0;
		while(x!=0) {
			x = x/10;
			c++;
		}
		return c;
	}
	public static int recycle(int z,int y) {
		return (((z%((int)Math.pow(10,y)))*((int)Math.pow(10,lengthOf(z)-y))) + z/((int)Math.pow(10,y)));
	}
	public static int trailing(int z) {
		int c = 1;
		while(z%10 == 0) {
			c++;
			z=z/10;
		}
		return c;
	}

    public static void write(String s) {
   		try{
  		FileWriter fstream = new FileWriter("out3.txt",true);
 		 BufferedWriter out = new BufferedWriter(fstream);
 		 out.write(s);

 		 out.close();
  }catch (Exception e){//Catch exception if any
  System.err.println("Error: " + e.getMessage());
  }
   }
   
   public static void main(String [] args) {
   	  int T,A,B;
   	  int contor = 0;
   	  
  	/*  T = 12305;
   	  System.out.println(lengthOf(T));
   	  int q = recycle(T,trailing(T));
   	  System.out.println(q);
   	   q = recycle(q,trailing(q));
   	  System.out.println(q);
   	   q = recycle(q,trailing(q));
   	  System.out.println(q);
   	  q = recycle(q,trailing(q));
   	  System.out.println(q);
   	  q = recycle(q,trailing(q));
   	  System.out.println(q);
   	  q = recycle(q,trailing(q));
   	  System.out.println(q);*/
	  
  		try{

  FileInputStream fstream = new FileInputStream("C-small-attempt0.in");

  DataInputStream in = new DataInputStream(fstream);
  BufferedReader br = new BufferedReader(new InputStreamReader(in));
  String s;
    	T = Integer.parseInt(br.readLine());
   		for(int i = 0 ; i < T;i++) {
   			s = br.readLine();
   			StringTokenizer st = new StringTokenizer(s," ");
   			A = Integer.parseInt(st.nextToken());
   			B = Integer.parseInt(st.nextToken());
   			contor = 0;
   			for(int j = A;j<B;j++) {
   				for(int k = j+1;k<=B;k++) {
   					int q = k;
   				
   					if((lengthOf(j) == lengthOf(k)) )
   					for(int z = 1 ; z<lengthOf(q)-(trailing(q)-1);z++) {
   							q = recycle(q,trailing(q));
   						if(q == j) 
   							contor ++;
   						

   					}
   				}
   			}
   			write("Case #"+(i+1)+": "+contor+System.getProperty("line.separator"));
   		}	
  
  	in.close();
    }catch (Exception e){
  	System.err.println("Error: " + e.getMessage());
    }
    
    
}
}