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 RecycledNumbers;

import java.io.BufferedReader;
import java.io.File;
import java.io.FileNotFoundException;
import java.io.FileReader;
import java.io.IOException;
import java.io.PrintWriter;

public class RecycledNumbers {

	/**
	 * @param args
	 * @throws IOException
	 */
	public static void main(String[] args) throws IOException {
		// TODO Auto-generated method stub
		BufferedReader br = new BufferedReader(new FileReader("RecycledInput"));
		PrintWriter pw = new PrintWriter(new File("RecycledOutput"));

		String cases = br.readLine();
		String line;
		int lines = 1;
		while ((line = br.readLine()) != null) {
			String[] strs = line.split(" ");
			int lowerbound = Integer.parseInt(strs[0]);
			int upperbound = Integer.parseInt(strs[1]);
			int number = lowerbound;
			int count = 0;
//			System.out.println(numberChars.);
			while (number <= upperbound) {
				char[] numberChars = String.valueOf(number).toCharArray();
				for (int i = 0; i < numberChars.length; i++) {
					String recycled = "";
					for (int j = 0; j < numberChars.length; j++)
						recycled += numberChars[(j + i + 1)
								% numberChars.length];
					if (Integer.parseInt(recycled) <= upperbound
							&& Integer.parseInt(recycled) > number) {
						count++;
//						System.out.println(number + " " + recycled);
					}
				}
				number ++;
			}
			System.out.println("Case #" + lines + ": " + count);
			pw.write("Case #" + lines + ": " + count + "\n");
			lines++;
		
		}
		pw.flush();
		pw.close();
	}

}
