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();
	}

}

package recyclednumbers;

import java.io.BufferedReader;
import java.io.BufferedWriter;
import java.io.File;
import java.io.FileNotFoundException;
import java.io.FileReader;
import java.io.FileWriter;
import java.io.IOException;
import java.util.ArrayList;
import java.util.HashMap;

public class RecycledNumbers {

	
	public static void main(String[] args) throws IOException {
		BufferedReader br=new BufferedReader(new FileReader(new File("./recyclednumbers/c-large.in")));
		BufferedWriter bw=new BufferedWriter(new FileWriter(new File("./recyclednumbers/large.out")));
		
		int numberOfCase=Integer.parseInt(br.readLine());
		
		StringBuilder out=new StringBuilder();
		
		for(int i=1;i<=numberOfCase;i++){
			out.append("Case #"+i+": ");
			int count=0;
			String input=br.readLine();
			int start=Integer.parseInt(input.substring(0,input.indexOf(" ")));
			int end=Integer.parseInt(input.substring(input.indexOf(" ")+1));
			
			for(int j=start;j<=end;j++){
				ArrayList<Integer>list=new ArrayList<Integer>();
				
				int n=10;
				while(j>=n){
					int last=j%n;
					int first=j/n;
					
					int recycle=last*(int)Math.pow(10, String.valueOf(first).length())+first;
					
					if(recycle>j && recycle<=end){
						if(!list.contains(recycle)){
							count++;
							list.add(recycle);
						}
					}
					
					n*=10;
				}
				
				
				
			}				
				
			
			
			out.append(count);
			if(i<numberOfCase)
				out.append("\n");
		}
		
		bw.write(out.toString());
		bw.close();
		br.close();

	}

	
	
}
