
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.io.IOException;
import java.math.BigDecimal;
import java.util.Arrays;
import java.util.List;

public class MinimumScalar extends JamProblem {
    public static void main(String[] args) throws IOException {
        MinimumScalar p = new MinimumScalar();
        p.go();
    }
    @Override
    String solveCase(JamCase jamCase) {
        MSCase c= (MSCase) jamCase;
        Arrays.sort(c.a);
        Arrays.sort(c.b);

        BigDecimal b = new BigDecimal(0);
        for (int i=0; i< c.lengh; i++) {
            BigDecimal aaa = new BigDecimal(c.a[i]);
            BigDecimal bbb = new BigDecimal(c.b[c.lengh - i - 1]);
            b = b.add(aaa.multiply(bbb));
        }
        return "" + b;
    }

    @Override
    JamCase parseCase(List<String> file, int line) {
        MSCase c= new MSCase();
        c.lineCount=3;
        int i = line;
        c.lengh = Integer.parseInt(file.get(i++));
        c.a = JamUtil.parseIntList(file.get(i++),c.lengh);
        c.b = JamUtil.parseIntList(file.get(i++),c.lengh);
        return c;
    }
}

class MSCase extends JamCase {
    int lengh;
    int[] a;
    int[] b;
}

