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


public class C_Qual {
	public static void main(String[] args) throws IOException {
		Scanner in = new Scanner(System.in);
		int T = in.nextInt();
		for (int tt = 1; tt <= T; tt++) {
			int a=in.nextInt(),b=in.nextInt();
			int res=0;
			for(int i=a;i<=b;i++){
				String num = i+"";
				HashSet<Integer> vis=new HashSet<Integer>();
				for(int j=0;j<num.length();j++){
					String newNum = num.substring(j)+num.substring(0,j);
					int n = new Integer(newNum);
					if(i<n&&n>=a&&n<=b){
						if(vis.contains(n)){
							continue;
						}
						vis.add(n);
						res++;
					}
				}
			}
			System.out.printf("Case #%d: %d\n", tt,res);
		}
	}
	}