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

class B
{
	public static void main(String[] args) 
	{
		try
		{
			BufferedReader br = new BufferedReader(new FileReader("B.in"));
			PrintWriter pw = new PrintWriter(new FileWriter("B.out"));
			int X = Integer.parseInt(br.readLine());

			for(int i=0; i<X; i++)
			{
				String[] S = br.readLine().split(" ");
				int A = Integer.parseInt(S[0]);
				int B = Integer.parseInt(S[1]);
				int R = 0;

				int x = 1;
				int n = 0;
				while(A/x > 0) {
					n++;
					x *= 10;
				}

				for(int j=A; j<B; j++) {
					Set<Integer> seen = new HashSet<Integer>();
					for(int k=1; k<n; k++) {
						int p1 = j % (int)Math.pow(10, k);
						int p2 = (int) Math.pow(10, n-k);
						int p3 = j / (int)Math.pow(10, k);
						int y = p1*p2 + p3;
						
						if(j < y && !seen.contains(y) && y <= B) {
							seen.add(y);
							R++;
						}
					}
				}

				pw.printf("Case #%d: %d\n", i+1, R);
				pw.flush();
			}
		}
		catch(Exception e)
		{ 
			e.printStackTrace();
		}
	}
}

package prob2;

import java.io.BufferedReader;
import java.io.BufferedWriter;
import java.io.DataInputStream;
import java.io.FileInputStream;
import java.io.FileWriter;
import java.io.InputStreamReader;
import java.util.ArrayList;
import java.util.HashSet;
import java.util.Set;

public class prob2 {
	public static void main(String args[]) {
		try {
			BufferedReader in = new BufferedReader(new InputStreamReader(new DataInputStream(new FileInputStream("./src/prob2/a-small.in"))));
			BufferedWriter out = new BufferedWriter(new FileWriter("./src/prob2/a-small.out"));

			int line = Integer.parseInt(in.readLine());

			for (int i = 0; i < line; i++) {
				int count = 0;
				String inLine[] = in.readLine().split(" ");
				out.append("Case #" + (i+1) + ": ");
				int min = Integer.parseInt(inLine[0]);
				int max = Integer.parseInt(inLine[1]);
				Set<Integer> inn = new HashSet<Integer>();
				if (max > 11) {
					for (int l = min; l <= max; l++) {
						inn.clear();
						String ll = l + "";
						for (int a = ll.length() - 1; a >= 1; a--) {
							if (ll.charAt(a) != '0') {
								int t = Integer.parseInt(ll.substring(a) + ll.substring(0, a));
								if (l >= min && t <= max && l<t) {
									inn.add(t);
								}
							}
						}
						count+=inn.size();
					}
					out.append("" + count);
				} else {
					out.append("0");
				}
				out.append("\n");
			}

			out.flush();
			in.close();
			out.close();
		} catch (Exception e) {// Catch exception if any
			System.err.println("Error: " + e.getMessage());
		}

	}
}
