
import java.util.Scanner;
import java.util.Set;
import java.util.TreeSet;
import java.io.File;
import java.io.IOException;
import java.io.FileWriter;
import java.io.BufferedWriter;

public class Recycle
{
	public static void main(String[] args)
	{
/*		Set<Integer> perms = getPermutations(123456);
		
		for(Integer i: perms)
			System.out.println(i);*/
	
		try
		{
			Scanner s = new Scanner(new File("recycle.in"));
			BufferedWriter w = new BufferedWriter(new FileWriter(new File("recycle.out")));
			int numCases = s.nextInt();
			s.nextLine();
			
			for(int n = 1;n <= numCases; n++)
			{
				int A = s.nextInt();
				int B = s.nextInt();
				int count = 0;
				for(int k = A; k <= B; k++)
				{
					count += getNumPairs(k, B);
				}
				
				w.write("Case #" + n + ": " + count + "\n");
			}
			
			w.flush();
			w.close();
		}
		catch (IOException e)
		{
			e.printStackTrace();
		}
	}
	
	public static int getNumPairs(int n, int B)
	{
		Set<Integer> possibles = getPermutations(n);
		int count = 0;
		for(Integer i : possibles)
			if(i > n && i <= B)
				count++;
		return count;
	}
	
	public static Set<Integer> getPermutations(int n)
	{
		Set<Integer> perms = new TreeSet<Integer>();
		char[] digits = String.valueOf(n).toCharArray();
		
		for(int firstPos = 1; firstPos < digits.length; firstPos++)
		{
			String toBuild = "";
			for(int k = 0; k < digits.length; k++)
				toBuild += digits[(firstPos + k) % digits.length];
			perms.add(Integer.parseInt(toBuild));
		}
		return perms;
	}
	

}
package com.vp.common;

public class CommonUtility {
	
	public static int[] convertStringArraytoIntArray(String[] sarray) {
		if (sarray != null) {
			int intarray[] = new int[sarray.length];
			for (int i = 0; i < sarray.length; i++) {
				intarray[i] = Integer.parseInt(sarray[i]);
			}
			return intarray;
		}

		return null;
	}
	
	public static float[] convertStringArraytoFloatArray(String[] sarray) {
		if (sarray != null) {
			float floatArray[] = new float[sarray.length];
			for (int i = 0; i < sarray.length; i++) {
				floatArray[i] = Float.parseFloat(sarray[i]);
			}
			return floatArray;
		}

		return null;
	}
	
	public static double[] convertStringArraytoDoubleArray(String[] sarray) {
		if (sarray != null) {
			double darray[] = new double[sarray.length];
			for (int i = 0; i < sarray.length; i++) {
				darray[i] = Double.parseDouble(sarray[i]);
			}
			return darray;
		}

		return null;
	}
	
	public static long[] convertStringArraytoLongArray(String[] sarray) {
		if (sarray != null) {
			long longarray[] = new long[sarray.length];
			for (int i = 0; i < sarray.length; i++) {
				longarray[i] = Long.parseLong(sarray[i]);
			}
			return longarray;
		}

		return null;
	}
	
	
	public static void print(int a[])
	{
		System.out.print("[ ");
		for (int i = 0; i < a.length; i++) {
			System.out.print(a[i] + ", ");
		}
		System.out.print(" ]");
		System.out.println("");
	}
	
	public static void printWithoutExtrLine(int a[])
	{
		System.out.print("[ ");
		for (int i = 0; i < a.length; i++) {
			System.out.print(a[i] + ", ");
		}
		System.out.print(" ]");
	}
	
	
	public static void print(float a[])
	{
		System.out.print("[ ");
		for (int i = 0; i < a.length; i++) {
			System.out.print(a[i] + ", ");
		}
		System.out.print(" ]");
		System.out.println("");
	}
	
	public static void print(double a[])
	{
		System.out.print("[ ");
		for (int i = 0; i < a.length; i++) {
			System.out.print(a[i] + ", ");
		}
		System.out.print(" ]");
		System.out.println("");
	}
	

	public static void print(long a[])
	{
		System.out.print("[ ");
		for (int i = 0; i < a.length; i++) {
			System.out.print(a[i] + ", ");
		}
		System.out.print(" ]");
		System.out.println("");
	}
	
	public static void print(String a[])
	{
		System.out.print("[ ");
		for (int i = 0; i < a.length; i++) {
			System.out.print(a[i] + ", ");
		}
		System.out.print(" ]");
		System.out.println("");
	}

}
