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.io.PrintWriter;
import java.util.Scanner;

public class ProblemC {

	public static void main(String[] args) throws FileNotFoundException {

		String test = "4\n" + "1 9\n" + "10 40\n" + "100 500\n" + "1111 2222\n";

		Scanner sc = new Scanner(new File("C-small-attempt0.in"));
		int teller = 0;
		int numLines = 0;
		String finalOut = "";
		boolean print = false;

		int n = 0;// smal number
		int m = 0;// big number
		int A = 0; // min number
		int B = 0; // max number

		int S = 0; // answare
		String[] split;

		while (true) {
			String line = sc.nextLine();
			if (teller == 0) {
				numLines = Integer.valueOf(line);
			} else {
				print = true;
				split = line.split(" ");
				A = Integer.valueOf(split[0]);
				B = Integer.valueOf(split[1]);

				for (n = A; n < B; n++) {
					for (m = n + 1; m <= B; m++) {
						S += check(n, m);
					}
				}

			}

			if (print) {

				if (teller == numLines) {
					System.out.println("Case #" + teller + ": " + S);
					finalOut += "Case #" + teller + ": " + S;
					break;
				} else {
					System.out.println("Case #" + teller + ": " + S);
					finalOut += "Case #" + teller + ": " + S + "\n";
				}
				S = 0;

			}
			teller++;
		}

		PrintWriter writer = new PrintWriter(new File("out.txt"));

		writer.print(finalOut);
		writer.close();

	}

	private static int check(int n, int m) {

		String N = "" + n;
		String M = "" + m;
		if (M.length() == 1) {
			return 0;
		}

		for (int i = 1; i < N.length(); i++) {

			String temp = N.substring(N.length() - (i), N.length());
			temp += N.substring(0, N.length() - (i));


			if (temp.equals(M)) {
				return 1;
			}
		}
		return 0;
	}

}
