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;
	}
}
/*
 *	3rd task of this years google Code Jam, lets see what I can do 
 */

//Import of java classes and packages
import java.util.Locale;
import java.util.Scanner;

//Body class
public class RecycledNumbers {

	//main class start
	public static void main(String[] args){
		
		Scanner sc = new Scanner(System.in);
		sc.useLocale(Locale.US);
		
		int recycledCount = 0;
		
		int testCount = sc.nextInt();
		
		//This cycle will run for every test (why so obvious?)
		for(int i = 0; i < testCount; i++){
			int first = sc.nextInt();
			int second = sc.nextInt();
			recycledCount = 0;	
			
			for(int j = first; j <= second; j++){
				if(j < 10)
					continue;
				
				String numberString = new String("" + j);
				for(int k = 1; k < numberString.length(); k++){
					String newNumber = new String(numberString.substring(k, numberString.length()) + numberString.substring(0,k));
					//System.out.println(newNumber);
					int number = Integer.parseInt(newNumber);
					if((number > j) && (number <= second))
						recycledCount++;
				}
			}
			
			System.out.println("Case #" + (i+1) + ": " + recycledCount);			
		}
		
	}
	//main class end
}
