
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;
	}
	

}
import java.util.Scanner;
import java.util.Set;
import java.util.TreeSet;


public class C {
	
	C() {
		Scanner in=new Scanner(System.in);
		for (int T=in.nextInt(),TC=1; T-->0; ++TC) {
			int A=in.nextInt(),B=in.nextInt();
			int cnt=0;
			for (int m=2; m<=B; ++m)
				cnt+=count(A,m);
			System.out.printf("Case #%d: %d%n", TC,cnt);
		}
	}
	
	int count(int A, int m) {
		String s = Integer.toString(m); // 345
		Set<Integer> set=new TreeSet<Integer>();
		for (int i=1; i<s.length(); ++i) {
			if (s.charAt(i)!='0') {
				String t = s.substring(i)+s.substring(0,i);
				int n = new Integer(t);
				if (A<=n && n<m)
					set.add(n);
			}
		}
		return set.size();
	}

	public static void main(String[] args) {
		new C();
	}

}
