
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 gcj2012;

import java.io.FileInputStream;
import java.io.PrintStream;
import java.util.Scanner;
import java.util.Set;
import java.util.TreeSet;

public class C {

	public static void main(String[] args) throws Exception {
		new C().run();
	}

	void run() throws Exception {
		Scanner in = new Scanner(System.in);
		in = new Scanner(new FileInputStream("C-small-attempt0.in"));
		// in = new Scanner(new FileInputStream("C-large.in"));
		PrintStream out = System.out;
		out = new PrintStream("C-small-attempt0.out");
		// out = new PrintStream("C-large.out");

		int T = in.nextInt();
		for (int x = 1; x <= T; x++) {
			int A = in.nextInt();
			int B = in.nextInt();
			out.printf("Case #%d: %d\n", x, countRecycled(A, B));
		}

	}

	private int countRecycled(int a, int b) {
		int res = 0;
		int p0 = 1;
		while (p0 < b)
			p0 *= 10;
		for (int s = a; s <= b; s++)
			res += countRecycledStartingBy(a, b, s, p0);
		return res;
	}

	private int countRecycledStartingBy(int a, int b, int s, int p0) {
		int p = 1;
		Set<Integer> recs = new TreeSet<Integer>();
		while (p < 1000000) {
			int end = s % p;
			int beg = s / p;
			int rec = end * p0 + beg;
			if (rec >= a && rec <= b && rec != s && s < rec) recs.add(rec);
			p *= 10;
			p0 /= 10;
		}
		return recs.size();
	}

}
