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

public class Mirror {
	public static void main(String[] args) throws IOException { 
		Scanner scan = new Scanner(new File("C-small-attempt0.in"));
		FileWriter fstream = new FileWriter("out.txt");
		BufferedWriter out = new BufferedWriter(fstream);
		int numCases = scan.nextInt();
		for (int z = 0; z < numCases; z++) {
			int low = scan.nextInt();
			int high = scan.nextInt();
			int count = 0;
			for (int i = low; i < high; i++) {
				String lows = "" + i;
				String[] arr = new String[lows.length() - 1];
				for (int k = 0; k < arr.length; k++) {
					lows = lows.charAt(lows.length()-1) + lows.substring(0, lows.length()-1);
					arr[k] = lows;
				}
				for ( int j = i + 1; j <= high; j++) {
					String highs = "" + j;
					for (int k = 0; k < arr.length; k++) {
						if (arr[k].equals(highs)) {
							count++;
							break;
						}
					}
				}
			}
			out.write("Case #" + (z+1) + ": " + count);
			if ( z != numCases - 1)
				out.newLine();
		}
		out.close();
	}
}