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.File;
import java.util.ArrayList;
import java.util.List;
import java.util.Scanner;


public class C {

	public static void main(String[] args) throws Exception{
		new C().solve(args[0]);
	}

	private void solve(String file) throws Exception {
		Scanner s = new Scanner(new File(file));
		int x=s.nextInt();
		for(int i=1;i<=x;i++) {
			int y = calculate(s.nextInt(),s.nextInt());			
			System.out.format("Case #%d: %d\n",i,y);
		}
			
	}

	private int calculate(int a, int b) throws Exception {
		int r = 0;
		for ( int w=a; w<=b ; w++) {
			String A = Integer.toString(w);
			int l = A.length();
			List<Integer> list=new ArrayList<Integer>();
			for(int i=0;i<l;i++) {
				A=A.substring(1)+A.charAt(0);
				int bb = Integer.parseInt(A);
				if ( bb==w ) continue;
				if ( bb<=w ) continue;
				if ( bb>b  ) continue;
				if ( list.contains(bb))continue;
				list.add(bb);
				r++;
			}
		}
		return r;
	}
}
