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

public class C {
	public static int recycle(int a, int b) {
		int count = 0;
		ArrayList<String> pair = new ArrayList<String>();
		for(int i = a; i <= b; i++) {
			for(int j = i+1; j <= b; j++) {
				String n1 = "" + i;
				String n2 = "" + j;
				for(int k = 1; k <= n1.length(); k++) {
					if((n2.substring(k) + n2.substring(0, k)).equals(n1) && !pair.contains(n1+n2)) {
						//System.out.println(n1 + " equals " + n2);
						count++;
						pair.add(n1+n2);
					}
				}
			}
		}

		return count;
	}

	public static void main(String [] argz) throws IOException {
		Scanner reader = new Scanner(new File("C-small-attempt0.in"));
		int numCases = reader.nextInt();
		reader.nextLine();

		FileWriter fstream = new FileWriter("out.txt");
		BufferedWriter out = new BufferedWriter(fstream);

    	for(int i = 0; i < numCases; i++) {
    		Scanner lineReader = new Scanner(reader.nextLine());
    		int a = lineReader.nextInt();
    		int b = lineReader.nextInt();
    		out.write("Case #" + (i+1) + ": " + recycle(a, b) + "\n");
    	}

		out.close();

	}
}