package codejam;

import java.util.*;
import java.io.*;

public class RecycledNumbers {
	public static void main(String[] args) throws IOException {
		BufferedReader in = new BufferedReader(new FileReader("in.txt"));
		PrintWriter out = new PrintWriter(new File("out.txt"));
		
		int T = Integer.parseInt(in.readLine());
		for (int t = 1; t <= T; ++t) {
			String[] parts = in.readLine().split("[ ]+");
			int A = Integer.parseInt(parts[0]);
			int B = Integer.parseInt(parts[1]);
			
			int cnt = 0;
			for (int i = A; i < B; ++i) {
				String str = String.valueOf(i);
				int n = str.length();
				String res = "";
				Set<Integer> seen = new HashSet<Integer>();
				for (int j = n - 1; j > 0; --j) {
					res = str.substring(j) + str.substring(0, j);
					int k = Integer.parseInt(res);
					if (k > i && k <= B) {
						//System.out.println("(" + i + ", " + k + ")");
						if (!seen.contains(k)) {
							++cnt;
							seen.add(k);
						}
					}
				}
			}

			out.println("Case #" + t + ": " + cnt);
		}
		
		in.close();
		out.close();
		System.exit(0);
	}
}

import java.io.BufferedReader;
import java.io.File;
import java.io.FileReader;
import java.util.HashSet;
import java.util.Set;

/**
 * 
 */

/**
 * @author Kamlesh Saran Dev
 * 
 */
public class RecycledPair {

	int a;
	int b;

	/**
	 * @param i
	 * @param j
	 */
	public RecycledPair(int a, int b) {
		this.a = a;
		this.b = b;
	}

	/**
	 * @return
	 */
	public int getNumberOfPairs() {
		int count = 0;
		for (int n = a; n < b; n++) {
			Set<Integer> allCombinations = giveAllCombinations(n, b);
			count = count + allCombinations.size();
		}
		return count;
	}

	/**
	 * @param n
	 * @return
	 */
	private Set<Integer> giveAllCombinations(int n, int b) {
		Set<Integer> result = new HashSet<Integer>();
		String nStr = Integer.toString(n);
		for (int i = 1; i < nStr.length(); i++) {
			String backPart = nStr.substring(i);
			String frontPart = nStr.substring(0, i);
			int newNumber = Integer.valueOf((backPart + frontPart));

			if (n < newNumber && newNumber <= b) {
				result.add(newNumber);
			}
		}
		return result;
	}

	public static void main(String args[]) throws Exception {
		BufferedReader bufferedReader = new BufferedReader(
				new FileReader(
						new File(
								"C:\\Documents and Settings\\Kamlesh\\Desktop\\codejam\\C-small-attempt0.in")));
		int numberOfTest = Integer.valueOf(bufferedReader.readLine());
		for (int i = 1; i <= numberOfTest; i++) {
			String line = bufferedReader.readLine();
			String limits[] = line.split("\\ ");
			RecycledPair rp = new RecycledPair(Integer.valueOf(limits[0]), Integer.valueOf(limits[1]));
			System.out.println("Case #" + i + ": " +  rp.getNumberOfPairs());

		}
	}

}
