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.util.HashMap;
import java.util.Scanner;


public class ProblemC {

	/**
	 * @param args
	 */
	public static void main(String[] args) throws Exception {
		
		Scanner leitor = new Scanner(new File("problemC.in"));
		int n = leitor.nextInt(); leitor.nextLine();
		for (int caso = 0 ; caso < n; caso++) {
			int a = leitor.nextInt();
			int b = leitor.nextInt();
			leitor.nextLine();
			/* A â¤ n < m â¤ B. */
			if (b > 10) { 
				int resultado[] = new int[b+1];
				for (int i = 0; i < 11; i++) {
					resultado[i] = 0;
				}
				for (int i = a; i <= b; i++) {
					String number = Integer.toString(i);
					int resultadoParcial = resultado[i-1];
					String numberToChange = Integer.toString(i);
					HashMap<Integer, Integer> tiraRepetidos = new HashMap<Integer, Integer>();
					for (int j = 0; j < number.length()-1; j++) {
						String novoNumeroString = numberToChange.substring(j+1) + numberToChange.substring(0,j+1);
						while (novoNumeroString.startsWith("0")) novoNumeroString = novoNumeroString.substring(1);
						int novoNumero = new Integer( novoNumeroString);
						//System.out.println(i + " -> " + novoNumero);
						if (!tiraRepetidos.containsKey(novoNumero)) {
							if ((a <= i ) && 
							(i < novoNumero) && (novoNumero <= b)) {
								resultadoParcial += 1;
							}
							tiraRepetidos.put(novoNumero, novoNumero);
						}
					}
					resultado[i] = resultadoParcial;	
				}
				System.out.println("Case #"+ (caso+1) + ": " + (resultado[b])); 
			} else {
				System.out.println("Case #"+ (caso+1) + ": 0"); 

			}

		}
	}

}
