package fixjava;

public class StringUtils {

	/** Repeat the given string the requested number of times. */
	public static String repeat(String str, int numTimes) {
		StringBuilder buf = new StringBuilder(Math.max(0, str.length() * numTimes));
		for (int i = 0; i < numTimes; i++)
			buf.append(str);
		return buf.toString();
	}

	/**
	 * Pad the left hand side of a field with the given character. Always adds at least one pad character. If the length of str is
	 * greater than numPlaces-1, then the output string will be longer than numPlaces.
	 */
	public static String padLeft(String str, char padChar, int numPlaces) {
		int bufSize = Math.max(numPlaces, str.length() + 1);
		StringBuilder buf = new StringBuilder(Math.max(numPlaces, str.length() + 1));
		buf.append(padChar);
		for (int i = 1, mi = bufSize - str.length(); i < mi; i++)
			buf.append(padChar);
		buf.append(str);
		return buf.toString();
	}

	/**
	 * Pad the right hand side of a field with the given character. Always adds at least one pad character. If the length of str is
	 * greater than numPlaces-1, then the output string will be longer than numPlaces.
	 */
	public static String padRight(String str, char padChar, int numPlaces) {
		int bufSize = Math.max(numPlaces, str.length() + 1);
		StringBuilder buf = new StringBuilder(Math.max(numPlaces, str.length() + 1));
		buf.append(str);
		buf.append(padChar);
		while (buf.length() < bufSize)
			buf.append(padChar);
		return buf.toString();
	}

	/** Intern all strings in an array, skipping null elements. */
	public static String[] intern(String[] arr) {
		for (int i = 0; i < arr.length; i++)
			arr[i] = arr[i].intern();
		return arr;
	}

	/** Intern a string, ignoring null */
	public static String intern(String str) {
		return str == null ? null : str.intern();
	}

}

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

class gcj2{
	public static void main(String[] args) throws IOException{
		BufferedReader inp = new BufferedReader(new FileReader("inp.txt"));
		BufferedWriter out = new BufferedWriter(new FileWriter("out.txt"));
		int test = Integer.parseInt(inp.readLine());
		int p = 1;
		while(test>0){
			String d[] = inp.readLine().split(" ");
			int a = Integer.parseInt(d[0]);
			int b = Integer.parseInt(d[1]);
			int i = a;
			int count = 0;
			while(i<=b){
				String s = new Integer(i).toString();
				int j = 1;
				HashSet<Integer> se = new HashSet<Integer>();
				while(j<s.length()){
					String temp = s.substring(j,s.length())+s.substring(0,j);
					if(temp.charAt(0)=='0') {
						j++;
						continue;
					}
					else {
						int t = Integer.parseInt(temp);
						se.add(t);
					}
					j++;
				}
				Iterator<Integer> it = se.iterator();
				while(it.hasNext()){
					int gg = it.next();
					if(gg>i&&gg<=b){
				//		System.out.println(gg +" "+i);
						count++;
					}
				}
			//	System.out.println("------------------");
				i++;
			}
			out.write("Case #"+p+": "+count+"\n");
			System.out.println(count);
			test--;
			p++;
		}
		out.close();
	}
}