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.*;

class Recycle{
public static void main(String arg[])throws Exception
{
File f=new File("C-large.in");
FileInputStream fin=new FileInputStream(f);
File f2=new File("bo.txt");
FileOutputStream fout=new FileOutputStream(f2);
BufferedWriter bwr=new BufferedWriter(new OutputStreamWriter(fout));
BufferedReader br=new BufferedReader(new InputStreamReader(fin));
String g="";

long ipn=Long.parseLong(br.readLine());
long ipni=1;
long a,b;
String e="";
long n,m;
while(--ipn >=0)
{
long count=0;
g=br.readLine();
a=Long.parseLong(g.substring(0,g.indexOf(" ")) );
b=Long.parseLong( g.substring(g.indexOf(" ")+1,g.length())) ;

for(long i=a;i<=b;i++)
{
n=i;
	for(long j=0 ; j<(i+"").length()-1; j++)
	{ 
		
		 m=shift(n);
		 if(m>-1)
		if(i<m && m <=b)
		{count++;
		}
		n=m;
		
	}
}


bwr.write("Case #"+(ipni++)+": "+count);
bwr.newLine();
bwr.flush();
}//while

}

public static long shift(long num)
{

	String s;
	if(num<0)
	s="0"+(-num)+"";
	else
	s=num+"";
	String ss=s.charAt(s.length()-1)+s.substring(0,s.length()-1);
	if(s.charAt(s.length()-1)=='0')
	return(-Long.parseLong(ss));
	return (Long.parseLong(ss));
}
}