import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStreamReader;
import java.util.HashSet;

public class Recycled {
    public static void main(String[] args) {
        try {
            BufferedReader br = new BufferedReader(new InputStreamReader(System.in));
            int t = Integer.parseInt(br.readLine());
            for (int i = 0; i < t; i++) {
                String[] str = br.readLine().split(" ");
                int a = Integer.parseInt(str[0]);
                int b = Integer.parseInt(str[1]);
                System.out.println("Case #" + (i + 1) + ": " + find(a, b));
            }
        } catch (IOException e) {
            e.printStackTrace();
        }
    }

    private static int find(int a, int b) {
        HashSet<Long> used = new HashSet<Long>();
        int digits = String.valueOf(a).length();
        if (digits == 1) return 0;
        for (int i = a; i <= b; i++) {
            int s = 10;
            int m = (int) Math.pow(10, digits-1);
            for (int j = 0; j < digits-1; j++) {
                int r = i % s;
                if (r < s/10) continue;
                int q = i / s;
                int rn = r * m + q;
                s *= 10; m /= 10;
                if (i != rn && rn >= a && rn <= b) {
                    long pp;
                    if (rn < i) pp = (long)rn << 30 | i;
                    else pp = (long)i << 30 | rn;
                    if (!used.contains(pp)) {
                        used.add(pp);
                    }
                }
            }
        }
        return used.size();
    }
}

package CodeJam;

import java.io.BufferedReader;
import java.io.BufferedWriter;
import java.io.FileReader;
import java.io.FileWriter;
import java.util.HashSet;
import java.util.Set;

public class RecycledNumbers {

	/**
	 * @param args
	 */
	public static void main(String[] args) {
		try {
			BufferedReader reader = new BufferedReader(new FileReader("D:\\workspace\\GoogleCodeJam\\data\\C-large.in"));
			String line;
			BufferedWriter writer = new BufferedWriter(new FileWriter("D:\\workspace\\GoogleCodeJam\\data\\C-large.out"));
			
			line=reader.readLine();
			int c = Integer.parseInt(line);
			int i = 1;
			while ((line=reader.readLine()) != null) 
			{
				String[] ints = line.split(" ");
				int a,b;
				a = Integer.parseInt(ints[0]);
				b = Integer.parseInt(ints[1]);
				int cnt = countNumber(a,b);
				writer.write(String.format("Case #%s: %s", i, cnt));
				System.out.println(String.format("Case #%s: %s", i, cnt));
				if (i<c)
					writer.newLine();
				i++;
			} 
			writer.close();
		} catch (Exception e) {
			// TODO Auto-generated catch block
			e.printStackTrace();
		}
	}
	public static int countNumber(int a, int b)
	{
		int cnt = 0;
		for (int i=a;i<b;i++)
		{
			String is = String.valueOf(i);
			Set<String> dup = new HashSet<String>();
			for (int j = 1; j < is.length(); j++)
			{
				String s = is.substring(j) + is.substring(0,j);
				if (dup.contains(s))
					continue;
				else
					dup.add(s);
				if (Integer.parseInt(s)>i && Integer.parseInt(s)<=b)
				{
					cnt++;
				}
			}
		}
		
		return cnt;
	}
}
