import java.io.File;
import java.io.FileNotFoundException;
import java.io.PrintWriter;
import java.util.Arrays;
import java.util.HashMap;
import java.util.Map;
import java.util.Scanner;
import java.util.Set;

public class CopyOfCopyOfMain {

	static int ndigits(int n) {
		return (int) (Math.log10(n) + 1);
	}

	static int rot(int n, int dig) {
		return (int) ((n % 10) * Math.pow(10, dig - 1)) + (int) (n / 10);
	}

	public static void main(String[] args) throws FileNotFoundException {
		String file = "C-large";
		Scanner in = new Scanner(new File(file + ".in"));
		PrintWriter out = new PrintWriter(new File(file + ".out"));

		int T = in.nextInt();
		for (int t = 1; t <= T; t++) {
			int A = in.nextInt();
			int B = in.nextInt();

			int c = 0;
			int[] list = new int[ndigits(B)];
			numbers: for (int i = A; i <= B; i++) {
				int digs = ndigits(i);
				int rot = i;
				int pairs = 0;

				Arrays.fill(list, -1);
				list[0] = i;

				digits: for (int j = 1; j <= digs + 1; j++) {

					rot = rot(rot, digs);
					if(rot < i)
						continue;

					if (A <= rot && rot <= B) {
						for (int k = 0; k < j; k++) {
							if (list[k] == rot) {
								continue digits;
							}
						}
						pairs++;
						list[j] = rot;
					}
				}

				//c += pairs * (pairs + 1) / 2;
				c += pairs ;
				// c+=digs;
			}
			out.println("Case #" + t + ": " + c);
		}

		in.close();
		out.close();
	}
}

package gcj2012.qualificationround;

import java.io.IOException;
import java.io.InputStream;
import java.io.PrintStream;
import java.util.LinkedHashMap;
import java.util.LinkedHashSet;
import java.util.Map;
import java.util.Scanner;
import java.util.Set;

public class RecycledNumbers {

	public static void main(String[] args) throws Exception {
		solve(System.in, System.out);
	}
	
	private static void solve(InputStream in, PrintStream out) throws IOException {
		Scanner scanner = new Scanner(in);
		int T = scanner.nextInt();
		for (int t=1; t<=T; t++) {
			
			final int A = scanner.nextInt();
			final int B = scanner.nextInt();
			
			Map<Integer, Set<Integer>> pairs = new LinkedHashMap<Integer, Set<Integer>>();
			for (int i=A; i<=B; i++) {
				pairs.put(i, new LinkedHashSet<Integer>());
			}
			for (int i=A; i<=B; i++) {
				String s = Integer.toString(i);
				for (int splitPoint=1; splitPoint<=numDigitsIn(A)-1; splitPoint++) {
					String sa = s.substring(0, splitPoint);
					String sb = s.substring(splitPoint);
					int newnum = Integer.parseInt(sb+sa);
					if (i < newnum && newnum <= B) {
						pairs.get(i).add(newnum);
					}
				}
			}
			
			int numRecycledPairs = 0;
			for (int n=A; n<B; n++) {
				numRecycledPairs += pairs.get(n).size();
			}
			
			out.printf("Case #%d: %d%n", t, numRecycledPairs);
		}
		scanner.close();
	}
	
	private static int numDigitsIn(int n) {
		return 1 + (int) (Math.log10(n));
	}
	
}
